Agree with Tom_Jack_Attack, be sure to look at the pictures real good to see if you see anything that looks like a dent in the screen (clear and multiple pictures of the device). I have purchased and sold quite a few and got really good deals. None have been fake but I have had two slip past me where I didn’t notice the ding on the picture or initial thought it was a dust particle. The sellers didn’t disclose and so I became an expert and looking at the pictures. I share with people all the time you can find them for that price on Mercari, eBay and Poshmark so it sounds like a average price sometimes on the used market, just make sure there is no issues with the battery, pictures or demonstrated use of the device.

I’ve never heard of, nor seen on here, any fake RMs. Just give it a good look over and get them to demonstrate all areas of the screen.