Lesson learned. Give the dealer a chance on tires . You have nothing to lose.
I find that you really have to fight with the dealership to get them to match KalTire/Costco/Green&Ross/OK Tire. My brother was able to get Mazda to match the price, though he'd have to pay $80 seasonally for switchover/balancing, but it apparently took hours of haggling.
My only real issue with buying from KalTire/Costco/Green&Ross/OK Tire is that they tend to try to upsell what's in stock or what they get a commission from. If I go in and say "I want the WS-80s" and they stock/can order them, then I don't get any sort of up-sell. However, if I say "I can't decide between the WS-80s and Xi3s," I'll frequently get, "what about Nitto NT90Ws? They're an incredible tire. It's Toyo Tire's performance division."
I mean, I bit at it and got Nitto NT421Qs for the RX400h and think they're the best tire that's ever been made, but that doesn't mean I'll like every tire they produce. The tread pattern, to me, is determinative of a tire's performance in certain situations. The compound is important, too, but if the marketing ad reads: "tread designed for maximum grip. 3D sipes for maximum grip. etc." then I wonder why they can't be more specific as to why their tire is better than others.
Back to the point at hand, enjoy the tires! I think the best reason to go to a dealer for winter tires is because they don't seem to 'sell out' like KalTire/Costco/Green&Ross/OK Tire.
