There are a lot of really nice aluminum track frames out there. If you're looking in this price range, you might also check out Dolans which have a bit better track geometry. You can also check Siegler Imports for their CSK frames. They still have some from 2006 on deep discount. The CSK pursuit frame is pretty radical and a really nice ride. The only problem I've seen with it (and not an uncommon problem with aluminum track frames in general) is that there isn't clearance for bigger tires (25-28 mm). It's assumed you're riding track tires or track training tires (like Conti Sprinters) and nothing bigger.