I didn't really intend for my post to be a "defense of the 29er." I was just correcting "operator's" false assumptions about them.

29ers aren't best for everything, for sure. Wheelie's and bunny hops? They're alive and well. And I'd rather do them on a mountain bike with 26" wheels.

I'll give you an example: say you're riding along a trail, and you come to a big rock garden, and at the end of the rock garden there's a log across the trail. I'd much rather have 29" wheels to ride through the rock garden, and I'd rather have the nimbleness of a 26" wheeled bike to ride over the log. Again, it's give and take, compromise, etc. Neither one is best for everything, but there are definite differences, and therefore advantages, to each one. So choice is good. But getting back to the OP, in the case of the 650B, (27.5er), too much choice is getting to the point of being silly, I think-