Gotcha, not a concern for me. Can't really notice them anyway unless you are viewing something that is mostly black. I'd rather get the touch screen functionality I paid for, which is one of the biggest benefits over a laptop. But, each to their own.
Very nice, sounds like you are getting your bang for your buck out of your Prime.
I'll probably get a mouse, although, I dunno if I'll ever use it. But, whatever, I'll throw it in my bag, and, if I don't use it, no big deal. Wireless mice are dirt cheap. Actually, come to think of it, I have a ton of wired USB mice lying around. Might as well toss one of those in my bag to see if I ever use it.