Well, form factor is not really important to me. If apple could put the current power of MacPro into macmini size i would not mind getting that.
The trouble is recent tech is moving rather slow compare to software that are pushing the limits.
We have games that even next generation card would not be able to play at maximum setting.
We have video 1080P 20+ Mbit H.264 that could barely play with current Mac.
Hard Disk are growing far slower then our Information oweing...