I work at Staples and I can tell you guys that the rebadged BenQs are pretty much gone. It's the BTC drives in the I/O Magic boxes these days.
I happened to have been sly enough to have hidden a BenQ drive when we got down to our last one recently and I bought it as a gift for myself on Christmas Eve. I've checked with friends who work at other stores thoughout the US and Canada and not a single one of them has seen a BenQ drive with the new shipments...its all BTC now it seems
At least I jumped in on this and got the last one we had hehe