I'm near Philly. What I notice is when (sometimes) I play with both the Enter and Del keys without depressing them I hear a click-type noise. I never get a repeat operation when actually depressing the keys. Maybe its a break-in period kind of thing.
What I hate about going to the VZW store is I have to delete all my info prior to going in case they do replace it. I'll wait till Tuesday when I get back to my office and save changes in Outlook from the weekend.
My guess is VZW will probably decline a replacement unless it actually fails. I'll let you know.