I agree, although I am less than impressed with the cabinets we just dropped 11 grand on at Lowes.
Depends on what your looking for.
Menards has some good deals on quality complete vanity sets.
Lowes is good for fixtures Like lights, faucets etc...
Home depot , for some reason, is cheaper on a lot of plumbing supplies.
If you are looking for tile, go with whatever you like at the best price, bargain outlet, floor and decor, or any of the big box stores. The tile shop at Morse and 71 is great for ideas , they have lots of displays, but high quality tile materials get expensive quickly.
Good luck!