check prices on newegg, they usually have better prices than BB.
Yep. That's where we bought his parts for this build.
The mouse was just a "hey, isn't Best Buy around the corner? I'd love to finally get..."
Funny part was that he was looking at a keyboard as well and we were checking out the various mechanical keyswitch units. Those run $100 and up, of course. He decided that he didn't need a new one but would just take one of my many IBM Model M keyboards instead.
I've never been prouder.
He was offered a new-in-box unit but was horrified that I'd even suggest that. He pulled a used one from "The Pile (tm)" and cleaned it up nicely.
Just for future reference, Best Buy will 100% price match with Amazon, I think they will with Newegg too, but I'm not sure.