I too, did a lot of research before buying. I found that there are not as many different ones as you would at first believe as so many are made by the same company, but sold under different names. for example Great Dane makes a great mower, and also produces the same mower for John Deere. Scag does the same thing. The units sold as lower priced units also have cheaper hydralic moters and pumps. Look at the hydralic moters on a Z-turn at Lowes and the look at the drive motors of a Great Dane, or a Kubota. I ended up with a Kubota ZG-20 because I trusted the dealer. I felt like he was telling me the truth, not what he thought I wanted to hear. The hydralic PTO clutch will last a long time, and I wasn't sure the electric would hold up as well. Maybe they will last longer, but I got what I wanted, and I liked the built in jack. Good luck with your search, later, Nat