The Project Debut and AT-PL120 were built for sound quality. The USB section is an add-on. Both of these turntables have functioned and sold well for a long time as analog turntables. It's the ION that's made and marketed purely as a USB digitizing turntable that's a lightweight plastic POS.
06-12-08: Arnold_layne
USB turntables are not built for sound quality but for ease of use. I doubt one would last thru 2200 LP's being transfered to a HDD.
Furthermore, the Audio Technica is a Technics knockoff, with cast aluminum plinth, close tolerance bearings, and targeted at the dance club market. As a $200 turntable it is simply unbeatable and should survive well past 2,200 LPs WITHOUT A BELT CHANGE! :) (though maybe the motor bearing could use a little oil along the way).
If you outfit it with an Ortofon 2M Red, you can replace the stylus after 1,100 LPs for a mere $69 retail.
The perfect is the enemy of the good, here. Sure, you could get a SME 20 with 12" arm, Clearaudio Goldfinger, EAR or Graham Slee phono stage and pro-quality A/D converter, but I seriously doubt the "client" wants to spend far more money on analog playback gear than he listened through for his entire lifetime.
If he already has a component turntable, maybe the best thing is to just get a USB A/D converter.