LOL, you compare it to Intel's X-25 SSD, retails here for about $1000 US per 64GB.
What are you talking about, I paid my 160gb Intel x25-
M only 340 (500$). (maybe you were thinking about the ENTERPRISE series of Intel SSDs, the X25-
E)
160gb is a fair capacity for OS and apps, SSDs take a very small volume, Apple could have left the 3,5" HDD for storage and put the SSD (even an 80gb Intel, which retails for 250$) as a second disk just for OS and apps, this single move would have taken the performance of iMacs to the next level, customers would be jawbreaking all the time at Apple Stores for the speed in opening applications, it could have been another "apple all or nothing revolution", like the removal of the floppy or the iMac g3 the first computer which relied only on USB ports, the (recent) ban of CCFL, the (recent) ban on TN panels from desktop computers, etc.
Apple could have become the first company to offer SSD for boot as a DEFAULT.....I hope to see the day this will happen....the impact on daily use of SSDs is so great that this would really impress customers....
How much do you want in an iMac ?
You do remember how much Macs used to cost just one year ago?
You do remember the "access price" for a 24" IPS iMac? Then March 2009 ---> BAM! Price cut! 24" IPS for everyone!
You do remember the "access price" for a Macbook
PRO? Then June 2009 ---> BAM! Price cut! Now
PRO for everyone!
You do remember the "access price" for a Macbook Air? Drammatically cut, now MBA for everybody at the price of a Macbook of one year ago...
Where I'm going with this? It's been a time of great price cut, they could have easily cut a little less and put a DEFAULT SSD on every Mac (at least iMacs, which have plenty of internal space) in the process....
Yep, the MTBF may be estimated at 1.2m hours, but hard drive MTBF is up at the same figure. And hard drives never fail do they ?
1) Mechanical parts ---> more likely to fail.
2) so? Even if failure rate was the same, you do realize SSDs are blazing faster than a HDD? SSDs would still be better hands down....
Don't see Apple offering it in an iMac in the near future.
And it is plain stupid. Why on LAPTOPS and NOT ON DESKTOPS? (usually desktops are supposed to be faster than laptops...)
But any user with an IQ over 60 could purchase a 3.5" SSD unit and install it. Google for a 3.5" SSD and there's plenty of choice. Performance and reliability not guaranteed. Imation 128GB SSD 3.5" SATA for $400.
And any user with any IQ above 80 would realize that you can easily fit a 2.5" ssd in a 3.5" bay

Why looking for 3.5" SSD.....the best buy is the Intel x25-m 80/160gb and it is a 2.5"...and I put it in my iMac....(as you can see in the pics above)
End of the day, it's all about price.
That's why they offer it on low end Macbook Air and not on 2000$ quad core 27" machine....get it.....crystal clear.....
Maybe the better question you should be asking is why Apple doesn't offer a SSD CTO option for users like yourself who'd want them...
...trust me, you don't wanna buy a SSD from Apple, there's a high probability it'll be expensive! Have you seen the price of their HD's?
You do realize Apple's been selling SSDs as CTO/BTO option for laptops for a year or so? (and 2 years on Macbook Air)
The real problem, beside the price, is that the sell shitt* SAMSUNG SSDs....the worst on the market (but still better than an HDD).....they should switch to Intel.....so for the moment is better to buy an SSD on your own.....still, it would be a good thing to use SSDs (even Samsung's) as a default disk for booting in every machine.....it would be another "apple revolution"....
(anyway Samsung is working on better SSDs for the near future, so there's some hope for the future...)