The first thing he noticed were my 6 taps and his comment was that he wished he had come to my house first with a few growlers instead of going to the beer store.
That's just rude. Or as my mom would say, "tacky"
What if he had said the same thing about something else? Maybe he takes a look in your fridge and remarks that he should have just taken the food out of your fridge instead of going to the grocery store. No one would do that.