My mother is in need of a new laptop and I'd like to get her a MB, but I'm a bit worried about the bottom bubbling.
Is it super common? a 1 in 200 type of thing?
If I get it should I also just order a spare bottom?
Any ways to help prevent it?
Bottom bubbling? I haven't' really heard of this problem. If you're referring to the battery, it isn't very likely. Just purchase the 3 year apple care warranty when you get the laptop and you'll be fine 🙂