I've done it for more than 25 years. Idle wasn't always that reliable back then. Now I hate 'driving my plane around - inverted engines suck up lots of crap into the carb and the prop. Also prevents stupid accidents (not that pattern fliers ever have them...). I can get my plane on and off the field faster. Tony, you may 'drive' your planes very efficiently, but have you ever been circling the runway waiting to land while somebody drives around trying to get lined up to take-off?
The last club I belonged to had a paved runway, but it was pretty narrow. A lot of guys would try to turn around and run out room. They'd either have to run out or they'd 'fall' off the edge of the runway usually killing the engine.
Of course I always kill the engine when making vertical 'landings' :-)
-Will B.