I love my two 3880 printers. No problems. If you can do without a roll feed and 17 inch limitation, they are great. One is fitted with Cone B&W inks. A recent thread, possibly in this section of LL, discussed reusable cartridges in the printer and buying larger cartridges to refill from, in the long run effectively saving on per/ml ink costs, or using aftermarket inks(inkjet mall, etc).
Don't know about the Canons, but I've been looking at the large format models from Canon, basically giving up hope that the problem with large format Epsons will be resolved at all.
Mike