The OBi 202 has all the features of the 200, plus one more phone port, and a built-in (not very fast) router. There is no reason to swap out a functional 200 for the 202.
Aside from that, I highly doubt that the 202 works, given its sale price. If you're curious, why don't you plug it in, plug a phone into the Phone 1 jack, and see if you can get a dial tone, and call *9 222 222 222 to test it with the OBiTALK echo test.