Voted for Yes.
It really depends on the service though, doesn't it? Everyone's different. I wouldn't want to pay for a service that plans a trip that includes waiting in line and huge crowds to see a bunch of tourist traps. Sure, there are a few things like that that you should see, but that's not my idea of a vacation.
The real question is though, will you be able to get enough customers to pay enough that it makes it worth your time?