There's only a few places in the suburbs of the Cities (or Twin Cities) that I go to, all hobby shops, but the granddaddy of them all is Scale Model Supply, often referred to as "Scale" or "the guy in the basement off University & Lexington", the neighborhood has gotten sketchy-ish over the last 6-plus years but it's only about 2 blocks of I-94 so easy to get to and from. If memory serves correctly it was a bowling alley up until the 70s when it was turned into a hobby store, still has the grey and teal floor tiles yet. And there is a White Castle right across the street for those who like them. They have stuff the other shops won't carry and also buy collections/estates, so the used inventory is always changing, I had been looking for this older issue of the Tamiya Sherman kit and what they wanted for it was well under what sellers on EvilBay where charging. Let's just say I've left there with a rather large dent in my wallet more than once...
