Been having an itch to try full frame for some time for family/vacation/landscape type stuff. Been reading a lot on the 5D classic and could pick one up (with the mirror fix) for a decent price. Kind of woo'd by the "look" of the images and not overly concerned with high ISO output for my intended needs. I generally print 10x12 max. My current lens lineup is in my sig. I know on the wide end I'd have to add something like an 85 to the mix and could either mod my 10-22 or get an EF mount wide angle of some type for wide landscape when needed.
Not looking at replacing my 70D as it's my go to for wildlife at this point and not looking to lay out significant cash. Any reason not to do it?