Well, soccer is played on grass all year round, true that it's a "bigger" sport, but Spain has at least 20 stadiums in first division alone which are much bigger than a tennis court, so I guess you really can have grass if you want it.
Well, according to most people, the costs that come with maintaining a grass court have been the main reason to abandon the grass. If anything, both clay and HC are a lot easier and cheaper to maintain.
(not that I'm not a fan of grass, quite the contrary - if I were leading the ATP, I'd do everything to have at least ONE Master's played on grass!)
I don't think the comparison with football should be made. The games are entirely different. Football players sometimes complain about the grass, and in really terrible circumstances the game is postponed, but usually that means there's some 30 cm of rain or snow on them - very very different from tennis, where the slightest drop of rain already causes delay, for various reasons, one of them being the risk of injuries to the players.
I guess tennis players may indeed be a bit whimpy compared to football players (if you count out the massive amount of Comedia del'Arte
which football players always seem to display
), but there's of course this huge difference of tennis being an individual sport, while football is a team asset - an injury sucks of course, but usually there's another ten players on the bench to take the place of the injured player. Ergo - completely uncomparable sports & situations.
Also, there's the artificial grass, but I don't know how it works for tennis. There's a court not far from home, I may try it.
Well... there have been experiments with football matches played on artificial grass, but from what I've read, players who enjoyed it were very hard to find... might be an interesting experiment, though. I'd like to hear how you like it!