I agree completely, Photoshop doesn't tend to crash, in fact, I've never known Photoshop to crash, BUT, you MUST have a decent computer to run photoshop, you won't have good results on something like a netbook. If you are in school, you can get an academic copy of Photoshop pretty resonably.
I could see people with slow computers saying Photoshop crashing, without the right amount of power, Photoshop would appear to freeze while it's working.
Now, if you are just doing basic editing, Lightroom is my weapon of choice, if they would add a healing brush to Lightroom, I don't know I'd ever go into Photoshop! Lightroom is non-destructive, which means it keeps your original picture and just applies your adjustments, if you want, you can go back to the original picture, or make virtual copies of the image and edit each seperately. Very cool, I love it.
You can try GIMP which is free and is the open source program which is suppose to be a replacement for photoshop (it's not.) Also, try Google's Pisca (is that spelled right?) We use that at work for simple photo editing.
Paint Shop Pro is also an alternative. I used to use it years and years ago, but haven't touched it since.
But Photoshop and Lightroom are top of their game for good reason. But I can understand that $1000 for both may be a bit out of reach.