I would get the wheels manufacturing version of the BB and just not worry about it. Personally have a poor view of anything FSA that involves bearings and understand being worried about replacement rate. Wheels prices theirs midway between the standard sram, shimano or fsa and king, WI or Phil but I don't think they give anything up in quality compared to the top end stuff. From there I'd agree with Merlinextraligh, if it isn't broke, don't fix it. BB's can go an amazingly long time with no issues whatsoever.