KM - yeah, I can agree with that. Although, to be fair, you do get what you pay for. The art in the map pack in Maptools is great, but, sometimes a bit too much memory, or the images are the wrong size, things like that.
I'd pay a couple of bucks for a bunch of trees, or swamps or whatever. Heck, there are already all sorts of sites that sell this sort of thing -
3D Models, 3D Modeling Textures and Plugins at TurboSquid for example, although, that's more 3d models as well as straight up art. But, you get the idea.
Or premade monster tokens sold in packs would be cool - kinda like the Fiery Dragon token packs that Claudio Posas has.
Of course, virtual modules would be FANTASTIC. If everything was already coded in - all the tokens laid, maps prepped, sound, line of sight set and all that. That would be worth ten bucks to me, for sure.
Can you get all this online already? Yup. Basically you're paying for time. The time it would take to hunt up just the right image/map/sound for the adventure you're running.
I'm really hoping you can just drag and drop from the Character Builder and Monster Builder into the VTT. You can't yet, but, hopefully that will come.