Percentage wise, I'm not sure Dolmar loses anything on resale (with the 7900 anyway since it's such as sought after saw), but I completely agree their street pricing varies from dealer to dealer. Although, I'd much rather be able to call around and find a "deal" rather than just have all the dealers stick to the "everyone pays our top dollar fixed price" mentality used by the Stihl and most Husky dealers.
I will say Dolmar's dealer network in general is spotty at best. OTOH, dealers aren't everything (to me anyway), like many of the Stihl cheerleaders will have people believe. In fact, dealing with the Stihl dealers for parts drives my almost insane at times. I'm not the type of person that will bring a saw to a dealer for repair, so local dealer service is completely a non-issue for me. But, I do buy parts for saws I purchase secondhand and many often need repairing. With Dolmar, not only do I have a "local" dealer (although many folks don't), but I can also get any part over the net within 24 hrs if I need it... and that's huge to me. In fact, this is what I dislike most about Stihl more than anything. Yes they have a dealer on every other corner, but they don't stock a lot of stuff and getting parts (at list price of course) can sometimes take more time and require more hassle than I'd like. I love Stihl and I have more of their saws than other brands, but I absolutely hate not being able to get parts from anyone other than my local dealer(s). Some people don't mind driving to a dealer or calling their dealer, sitting on the phone for five or ten minutes while he looks up the part (hoping he's looking at the right item, or arguing about the part number for the IPL your using), takes your CC number for payment, and then having to wait 1 day to weeks for your part to come in. Yes, some Stihl dealers don't do enough volume so your order can sit on a list before an order is ever placed. I'd much rather just look at an IPL online, place my order, select shipping method, and have my part (what I know will be the CORRECT part, not the one some parts kid thinks I might need) delivered to my door in the same time period, or less. Since I buy and sell more Stihl saws than any other, I really wish I could order their parts over the Internet!
Anyway, sorry to get so far OT...