I think that's fair. Having price brackets for different types/styles sounds a good idea
I think most people realise how much time and effort it takes. And if you look at the price of pre printed mass produced cards they should be able to see the value

I'm making invites etc for DS's wedding next year. I have kept the design really simple, when you are making 50+ it can be very time consuming and I don't want to over commit myself !