I recently made the switch to a straight razor. I bought a really nice 1/4 ground LeGrelot like this one.
I've been using it for almost a month now and am really starting to get some phenomenal shaves with it. No ingrowns, no irritation, just smooth. Although the razor, strop, and hone did cost me about the same as a two year supply of Fusion cartridges it is neat to know I will be able to shave with this same razor fifty years from now as long as I take care of it.