Yeah, but for fit, it seems to be in the right position. When the crankarm is at 3-o-clock, my knee is right above the pedal spindle where it oughta be. Pedaling feels like shit because Biopace was designed to work well at like 70-80rpm, but I like pedaling at 90-100, so it feels like I'm bouncing and jerking around.>>1322407
Because it's really easy to get a used bike that turns into a money pit, so you have to know to look for stuff like corrosion on the inside of wheels (and shitty wheels in general), make sure that everything is well-aligned, check for headset play, find out what parts aren't OEM-spec and why, and so on. You have to find out what OEM parts plain sucked, or what you'll have a hard time finding replacement bits for. A Bianchi Eros with 8sp Campy Mirage is a good example. Great bike, but the OEM Ambrosio box-section rims are soft, the brakes are poor, and finding 8sp campy cassettes is a pain, because Campy had three different standards for 8sp, Alphabet, Exa-Drive, and Ti.
Even if the bike is in great condition, you'll likely need to replace a few things straight off: tires, brake blocks, saddle, handlebar tape, brake hoods, cables. And if something goes wrong, you have no warranty to hopefully help you out. The seller might be nice, probably not. I got lucky with my 615, although now I'm electing to go the money pit route with it because I'm addicted to it. I just received pic related in the mail today to replace the shitty diacompe levers. Horrendously expensive but they tickled my italiboo and weeb sides equally.
Anyway, I don't even think used makes sense at the $600 point, as that's where a lot of Linus's bikes like the Pronto, Roadster, Libertine, and Mixte are priced, and I think that they are good value. And then there's the Marin Nicaso at $750.
I feel like $300-$400 is a better spot, as that gives you enough to get a decent used bike and have something left over for replacement bits.