I have made many t-shirt quilts. I don't think I will ever get paid what they are worth... but its a way to get some money to support my quilting addiction ha ha. It does depend on who I am making it for.... $250 is pretty much the average. With that money I have covered the interfacing, batting and other materials. Again -- I am not going to get rich, but I ALWAYS have a roll of batting in my house. The interfacing by the bolt helps make it cheaper for the quilt.
I see these as only as a way to get some money to buy more quilting supplies. Possibly when I retire I may work the pricing up a little. We will see
I think aashley33 at $350 is still a bargain... these quilts can be a lot of work