I've been on the boards awhile and if i have a question i usually do a search to see if someone has asked it before; but i'm having trouble with "upsell." When is the appropriate time to ask if an "upgrade" is possible - when making reservations or upon check-in? If the proper term upgrade or upsell when speaking with a reservationist? I've booked a Poly GVC for the first week in October - paying full price. We are celebrating DH's 45th birthday so i thought concierge would make it a little more special than usual. But, the Poly sounds so wonderful that I'm on the fence about concierge as it does add $1000 to the price. I wonder if i should just make regular reservations and ask about "paying for an upgrade" to see what is available?