Yes it all adds up, but when you are trying to put together a quilt which 'says' what you want it to say, perhaps you needed to worth through the fabric choices and find what worked for you.
I have done the same thing, and that is pretty much the extent of my 'stash' so I don't feel bad about it. You shouldn't either. You want the quilt to leave your hands being something you are happy with, not something you settled for, right? It took what it ook to get there, so stop feeling guilty and enjoy how beautiful it is!