It kills us to let this secret out, but Houstonians with good taste already know it: Not only does Wherehouse Music have the most impressive collection of used, mostly pop CDs, arranged nicely and in a customer-friendly way (in alphabetical order and by artist) along a handful of 20-foot-long display rows, but the store also has the best artists. Makes you wonder if Wherehouse feels any shame paying up to $4 per used CD for what are obviously lost or, dare we say, stolen goods. What "person" in his right mind could have honestly let go of Imogen Heap's wondrous 1998 debut, I Megaphone? Yet there it sits, for the low, low price of $2.99, in the "H" section, right alongside Elton John's classic Captain Fantastic and Freedy Johnston's perfect This Perfect World. Either yokels are growing fonder of mainstream commercial radio pop, which explains their parting company with great music like the aforementioned, or something fishy's going on at Wherehouse. The latter is doubtful. Painfully so.