Very good mixer. It has a 3 band EQ which is good considering the 05Pro series only has a 2 band EQ. It also has faders for EQ knobs which is very cool. The faders are all very good Vestax PCV Faders and the Line Faders even have reverse and curve setting so you can scratch on them. Besides that, they’re proven battle mixers and you won’t be disappointed in your purchase. The only reason I’d take an 50Pro3 over a 07Pro would be because the 07 lacks an effects loop. All in all, get the 07Pro.
I’ve been watching 07’s on ebay for a while now. Yeah good ones usually go for around $200ish and you can get a bit of an idea of how much use they have seen by the amount of paint missing around the crossfader. Another good mixer worth considering from what others have recommended is the pioneer djm-707. Those tend to go kind of high- around $300, so if you can find one around $200, I would jump on it.