As I'm surfing the web, I'm seeing several of these for sale, with a decent (not too high, not too low) amount of hours on it, which tells me that they were ok for the current owners. I'm seeing two different models: One with a 45 blower and one with, I think, a 56blower. If I find a killer deal on one, which is the best? Or should I just pass on all of them? I'm looking for another unit if I need another tm for apartments and big jobs only for the technician to operate, that is in my price range of I don't know yet, so don't bring that up.