Honestly, this has got to be one of the more absurd postings I've seen in awhile. I'm not sure what it says that I've read through all of them, but ...
Since Apple hasn't had a mid-range tower in recent years, I don't see them heading towards it. All of their current products, Mac Pro aside, have to do with being small, different, unique. Mac minis' are smaller than most external hard drives. iMacs' have the whole computer in a monitor. Macbooks' and Macbook Pros' are the best designed, most efficent laptops designed. And Mac Pro is simply so powerful. Then what, the "Mac" is, um, well, let's see, perfect because, it just works!
Also, I think there would be a monitor issue; Apple would need to look at selling less expensive monitors with that option. I'm not sure how comfortable most computer users would be paying $1200+ for a computer with no monitor. It works with the Mac Mini because the computer is relatively cheap. It works with the Mac Pro because you're shelling out over $2000 for it, what's an extra $600+ for a flat panel monitor? But, with a mid-range tower, the monitor issue would need to be tackled for it to work.