I got my first kit a Kresge's. We had a drug store on the corner, 3 blocks down was Hobbyland, then another drug store, Kresge's, Woolworth's, then onto The Toy Chest. I purchased my first X-Acto knife there for 29 cents. Mostly I bought at Kresge's. I got to know the lady in the toy dept. fairly well.
Cash back then came from lawn work, and snow shovelling. If I had $2.00 it was gone in a flash.
On a side bar when The Toy Chest closed they had Revell Double Gragster kits just in side the front door. They were stacked floor to cieling and over 40 feet long, the entire wall. Here's the killer they were $0.50 each. Yep only half a buck. Oh to have foresight back then..... :(