I wouldn't worry about it too much. Imagine how an SSD on a Windows machine would get slammed doing Virus Scans, they tend to use a ton of disk space. Even under those conditions we had Windows NT Embedded machines with Virtual Memory Enabled running a full virus scan every morning and it took about a year and a half to blow out all the write cycles on a 512MB SSD. Auto Save/Versions will have minimal to no effect on your SSD.
Not quite true. Remember that writes to a cell invalidate that cell for further writes until the entire cell is erased. So if a cell has say, 10 blocks for writes and you write a 3 block file, those 7 blocks are unavailable to the controller until the whole cell is re-initialized (zeroed). With a lot of "tiny" writes, the number of cells invalidated adds up very quickly, and you reach the provisioning wall rapidly.
Don't think it happens? I've had World of Warcraft on my 60 GB SSD less than a year and I've had to low level format it twice and recopy WoW to regain performance like when the SSD was new. Not only is that time consuming, but it eats up available write cycles faster than should be happening on a typical install. It's the large amount of tiny writes that did it. So six months for a 60 GB SSD for a single game that writes less files than the OS does daily.
Now imagine that as an OS boot SSD and then stick in the autosave "feature". Yeah, not so pretty now is it?
