Really?
I've worked in and with shops for a pretty long time now and I've never heard of a shop that wouldn't lace up a hoop for a customer that brought a rim and hub into the shop. Especially a nice guy like you Mic.
Be prepared to pay for our time to do the spoke calc if it isn't a combo we build regularly, but seriously: "thank you for your business" is the only thing you should hear other than maybe "next time you wreck it we would love the chance to quote on the replacement" followed by "happy trails" or the equivalent.
I'd _so _do it…if I had the chance. Seriously though, over here the shops in my direct vincinity are a bit, well, special when it comes to things like that. In my experience they rather order the new rim through their contacts.
Oh well, if the Mavic is bombproof (and I take King of Fasia's word for it) then it does not hurt me or my wallet if they get it and lace it up for me. They may earn a few extra bucks - all good with me, if you know what I mean.
I could go on and on about bike shops over here, but I won't.
"You don't learn from experience. You learn from reflecting on the experience."
- Kristen Ulmer