If you were building furniture, I'd agree that you need both a planer and jointer to dimension your wood. But for scrolling, I think a planer is good enough. You're cutting the wood into relatively small pieces. So absolutely dimensioned wood isn't as big of a concern. If you can afford it, I'd go the DeWalt route. But with the kind of projects/frequency we use the planers for, a less expensive model will probably work well enough. Check Amazon too. A lot of time, you can find tools cheaper there and its usually free shipping.
Now that you have your mind made up, let me complicate things a bit more and throw out another idea. A drum sander will dimension wood similar to a planer. However, a drum sander will create thinner pieces than a planer would. Plus, with highly figured wood (birds eye maple), you have less chance of chip-out. Plus the idea of having something that will sand the wood for me has a certain appeal.