Due to my job, I have been constantly moving the last 9 years (US to Europe to Asia).
....I will not be travelling as much, so I thought now is a good time to get my own gear.
LOL! I have to admit, I thought you had to be trolling with that "Advanced, expert rider" shit and asking about a little gray on base of the board,.. but it sounds as though you explained your situ well!
I'm only laughing here cuz If you really are an expert rider, I can't ride for shit by comparison and I couldn't imagine ever getting any good on a board without ever having one of my own!
....So, It's fine! Wax it, ride it, Enjoy it!!! You now get to experience the thrill of ownership and eventually destroying a board you can't just drop off and replace!