Hi gonefishin,
It would be great if you could get someone with a digital camera to photograph your coin so you could post some images. I wouldn't be surprised if some Forum members were willing to offer more than your dealer.
In defense of dealers (I'm not one, but I know a few), they want to buy low and sell high. How low and how high depend on the dealer and you are wise to shop around for the best price. If my local storefront dealer (a very honest guy in my opinion) offered $360 for your coin, he would probably expect to be able to sell it for $450 or so. That to me would be a fair mark-up. You could probably sell it for $450 too, it would just take some time and effort. As always, you have to decide whether you'ld rather have the coin or the cash. Personally, the 1880-CC Morgan is a great coin and I'd want to hang onto it for awhile!