I noticed that too. But I think it's because Re-Tail isn't a "store" as much as it is a second hand shop, where villagers bring their junk and sell it for cheap. It's also a good place to go to just sell your stuff since the Nooks pay less for your stuff than Reese does.
Mine added a tape deck today. I think it works like the recycling bin where residents will just put their old stuff up from time to time.
Yeah that sounds about right. Only this time instead of just taking the stuff, you have to pay a little bit for it. But likewise you can sell your stuff and maybe they villagers will pay a little more than its worth and you'll make some extra Bells.