While I tend to agree that this isn't real golf and the balls are not really lost since they are only virtual balls anyway, I do think it does put more of any element of real golf into the game.
Playing #6 at Congressional out in the fairway 245 away to the up pin, with a ball that I know won't be lost, I'm going at the pin every time. With a ball that I won't get back, I might be a little more conservative.
I would like to see a hit counter on the ball instead of the line that we currently have, I would think that with putter pal and the new version of that for full shots, that it wouldn't be hard to do that with a ball.
Also it would be nice if WGT could group all the 'free' balls that they give us into one category so you can play them them and use them all up rather than have a ball with 7 hits left or end up on the 8th hole and out of that ball. I believe that they are all the same in terms of playability, just be nice to be able to use them all up.