[citation][nom]CheesyHotDogPuff[/nom]Nothing has been confirmed yet.[/citation]
Multiple sources have confirmed that mainstream Broadwell CPUs will be BGA-only. What has not been confirmed yet is what the lowest-end socketed chip will be... will it start with i5 k-chips, LGA2011's successor or something lower-endish?
[citation][nom]kanoobie[/nom]Most people don't build their own computers and having the CPU soldered onto the motherboard would make it harder for venders to service the computers they sell.[/citation]
That is relative. With previous generations, most external interfaces served from various motherboard ICs that could get fried would still have required a labor-intensive motherboard swap. With just about everything that can fail integrated in the CPU, the rest of the motherboard is little more than a cheap passive backplane that is cheaper to chuck in the garbage bin than attempt to fix.
It could be argued that fewer fixable parts makes repairs simpler: no messing around with guessing whether the CPU or motherboard is the problem, no worrying about customers telling half the story when processing RMAs, no worrying about ruining a good motherboard with a bad CPU or vice-versa since they are now one single item, etc.
Also, on a conventional motherboard, the non-replaceable Intel chipset accounts for 30-50% of the cost. Replacing the chipset with the CPU simply increases that proportion to 50-80%. In either case, an Intel chip gets fried, the board is dead.