If its an HTPC, it shouldn't matter if FM1 is end of life, are you ever really going to need to upgrade the CPU? That APU has way more power than it needs to play Blue-Ray quality, and play games on par with WOW's system requirements. Hell, in 2 years, DDR3 is going to be outdated But thats your call
. If you were looking for a gaming desktop, then yea, the FM1 socket becoming retired would be a concern, (but at their current price it would be cheaper to ditch and rebuild in a few years than try to upgrade it if it weren't) HTPCs are HTPCs.
You wanted our thoughts, I second Pyree's recommendation.