I've been looking for some monitors to go on the selves in my living room and ran across these yesterday at BB Magnolia. You're review is spot on. They had them hooked to a Pioneer Elite receiver and I don't even know what the source was, but they were amazing. Transparent as speakers costing many times their price. I was blown away by the amount of "good" bass that came from such a small speaker. Just that last bit in mid and upper end detail was missing, but like you noted, you're going to have to pay to get this. BTW, a REL 10" sub was used, which was a really good match and that little REL was a find too.
I'm putting together a 5.1 system in this room and the Motion's all around are definitely under consideration.
BTW, I've seen these listed @ 4 and 8 Ohms on different sites, could you confirm which they are? Also, is the sensitivity decent? I'll be pairing these with an Integra receiver. I have a 3 channel Acurus amp with more juice, but to be honest, I actually like the Integra's sound. Go figure.