Can someone give me insight as to whether LBSs follow MSRP for bicycles?

I'm trying to budget for my dahon. I'm just wondering if I'm in for a lot of LBS add-on fees (like with car dealers). Any dahon dealers willing provide me with their practice? I'm all for paying for a proper set-up out of the box (What does that run?). I also realize that I'm going to pay sales tax in my state. I'm just trying get a figure in my head before I go to buy so that it doesn't explode.