BB&B didn't have the Weber in stock, but they did have the Sanyo HPS-SG3 on sale for only $40 (same as Amazon's price, although obviously I had to pay sales tax this way), and the helpful sales associate who pointed me to it spoke very highly of it (and apparently America's Test Kitchen reviewed it very favorably), so I decided to buy that instead.
It is basically just a heating element integrated into a cooking surface (in an extremely well-designed manner), a plastic (but also well-designed) stand, and a metal drip tray. I don't expect the plastic stand to really hold up very well, though. I'm already thinking of making some sort of metal stand for it (maybe by adapting a cheap charcoal grill ) that would allow me to also put a lid on it (some of the Amazon reviews recommend using an aluminum baking pan as a makeshift lid, but I'd be worried about that melting the plastic base immediately) which would then also make it suitable for smokier cooking.
I will be sure to keep people apprised as soon as I have a chance to actually cook with this thing (which will not happen until I get a sufficiently-large patio table and an extension cord).
I also realize how silly it is to take an item that is supposed to bring an outdoor cooking technique indoors and then immediately try to make it an outdoor thing.