That's standard practice - they don't want you opening the box but there's no reason you can't.
However, Apple then goes and includes step by step instructions on how to upgrade the memory in the back of the iBook manual, complete with pictures...
Actually, in Apple's case, they would. I took mine to a Mac store - just to ask questions about it - and you would think I was trying to peddle cocaine the way the guy was looking at me. He told me what size screwdriver to buy after some coaxing so I could install it myself, but he didn't even want to look at/touch the RAM module I was holding for "legal reasons".
However, Apple then goes and includes step by step instructions on how to upgrade the memory in the back of the iBook manual, complete with pictures...
If you're worried about it, nothing stopping you buying the memory yourself and getting a AASP to install it for you. I'm sure they wouldn't grudge the business.
Actually, in Apple's case, they would. I took mine to a Mac store - just to ask questions about it - and you would think I was trying to peddle cocaine the way the guy was looking at me. He told me what size screwdriver to buy after some coaxing so I could install it myself, but he didn't even want to look at/touch the RAM module I was holding for "legal reasons".