My Wish List is that Apple could have provided us a Choice and still offered the traditional tower with internal expansion AND also offer the new 2013 cylinder Mac Pro.
If they had it would likely not what you are thinking. The single package model would have been this new Mac Pro. The tower would likely
only be the dual package model. The prices would not overlap ( just as did not overlap in the current and previous Mac Pro offerings). The price on the dual entry point would might even go up to cover the cost of the embedded GPU to cover the infrastructure for one TB socket.
Apple is going to move to just one Docking station/display format and that is Thunderbolt. So the display port three headed hydra is likely going to disappear.
Apple's design context is that of a fully usable system. That means Mac Pro + "Display" product. You don't have to buy their display but the Mac Pro is going to be designed to be used with it. ( Now whether the 'display' is optimized for the Mac Pro that isn't quite as true with the dangling MagSafe cord. But perhaps they'll fix that with another screen size variant. )
That would have been a Win-Win situation for all and minimized the heated debates.
Likely would not cut off debate. You'd still have
a. xMac folks who wanted a tower to engage in iMac fratricide.
b. Tower purists complaining about the embedded GPU in their tower. ( and maybe about loss of slot if daughercard inserted vertically ).
c. single package folks still smarting about stuffing > 2TB into the new form factor.
d. folks claiming "FAIL" on the cylinder form factor because it is new and unproved.
e. folks complaining about prices they don't know. ( "if firepro drives up single package entry point to $3,099 then the dual tower has to be $1,000+ higher ).
f. The AMD vs. Nividia for embedded GPUs would still be mixed in.
Like when the Retina MacBook Pro was released, we still have the choice to get the classic, non-retina MBPro.
Not really. the MBP 17" was traded for the rMBP 15".
Yes there is a temporary logjam with the 13" laptop space. That is in part because the MBP 13" was ( still is ? ) the
best selling Mac model. Killing it off is suicidal until have a viable replacement. In contrast, the Mac Pro is the worst selling Mac model. It would be pretty easy just to cancel the whole thing.
That said by 2016 there probably will be just one 13" model. The rMBP 13" will either kill off the MBA 13" or MBP 13" in the next 16 months. 12-16 months after that the other one will probably be gone unless growing user demand for both remaining survivors lifts them both.
Other examples
MBA 11" traded for MacBook at $999 price point.
MBA 13" eventually tranded for XServe. There was some overlap between the two 2008 intro for MBA and 2009 last refresh for XServe
In general Apple has kept the number of Mac product offerings relatively constant. So introducing X means the exit of Y .
Conceptually the cylinder and tower could fall under same general product line ( e.g. 13" , 15" , 17" laptop ), but the differences and tech trends following are different between the two.
Years ago when the G4 Cube was launched, users still had the choice of getting the tower PowerMac G4.
The Cube ended in failure within a year. Apple isn't going to repeat that? Part of that failure was fratricide generated by selling a "last year's PowerMac" up against the Cube also with last years processor at roughly the same price. All that happened is those two effectively killed each other off. Apple got away from "last years power mac" ( iPhone 4 during iPhone 4S style ) and the Cube died.
That "last years thing gimped down a bit on specs" only works in very high growth markets. Desktops were not high growth back in 2001 and certainly are not now. Desktops don't even drive the PC market anymore 10+ years later.
The other major difference between Cube era and now is that Apple has been telling developers/vendors for 2-3 years that they believe in OpenCL and Thunderbolt. That the Mac Pro 2013 bets huge on both shouldn't be a surprise.
Sadly, right now no option was available.
There is options. From "sneak peek" till new Mac Pro launch folks can choose to buy a current Mac Pro. At least there is a "change is coming" window.
The Mac Pro was on track to being canceled. That there is anything is an option. Spliting the volume between dual tower and new format would only both at greater risk of failure. Likewise cranking up the fraticide is tried overlapping single package model.... both entire line ups would be at risk.
The Mac Pro was not succeeding in current format. If it had been doing well ( as good or better than its mac cohorts ) from 2008-2010 it never would have gone into EU market withdrawal in 2013. There may have been a more gradual transition with 2012-2014 being the transitional years and 2014-2015 the transition to the new form factor, but it probably still would have come.