Englishal I used to think that before I put my two up for lease, but was shown the error of my ways.
One point: If you want to lease one out, you'd better get a good one with lots of navadis and most importantly of all - a good paint job.
Then you might want to bribe the instructors so that they use your a/c instead of another...like maybe the one the flight school owns.
Then you'd better cross your fingers and hope you don't have what happened to me happen to you: the b@st@rds crashed it.
My baby. A beautiful 172 with 100 hours on the engine, leather seats, metal panel, Collins stack with dual glidescopes, ADF, DME, Loran, intercomm, flap gap seals, Cleveland brakes etc etc etc.
So go for it, but don't say you haven't been warned.