Menards advertises in OGR and CTT, and have for some time, so I am somewhat surprised anyone on this forum wouldn't have heard about Menards' train products outside of this forum.
As for the stores, that's less surprising. Menards started in Eau Claire, Wisconsin, and has been expanding from that spot for decades now, but is still a middle-of-the-country chain of ever-growing home improvement stores.
I laugh when people say they wish they had a Menards closer to them merely because of train stock. It's really a small, seasonal part of the chain's floor space.
I like Menards more for its value-priced tools, lighting center, aisle merchandising, bathroom and kitchen displays, certain non-home improvement offerings and great seasonal department (from Halloween season through Christmas especially). Subjectively, I'd say it's much friendlier than walking through The Home Depot. The train stock? Yeah, I like it in November and December when there's lots of stuff in part of one aisle, but I spend a majority of my time in other parts of the store even then.
The customer service elements merely keeps happy customers happy. So I am still happy.