I'm sure I've spent a fortune on my fluffy nappies but most of them were bought 2nd hand and I have sold any that I won't use again or didn't get on with.
I like the idea of a spreadsheet to work out how much I spent (should of done that although dh would of know everything I spent!
I think over all with the resale value on the pretty ones you make but most of your outlay back.
I hated disposables as they always smelt horrid and never looked as cute.
Mine are now about to be used for number 3 so very cost effective for me!