There are loads of premium refurbishment outfits like refurbed.at (Austrian) who will sell you a second hand device in mint condition.
There are also high-street tech repair shops that usually sell second hand devices, and one chain here (webuy) that work a little like Gamestop but also buy back electronics. They underpay and overcharge just like Gamestop, but it still works out way cheaper than new, and they provide a warranty.
I've bought from all three sources for myself and my family. I only had an issue with a device from webuy one time, and since it's local I was able to go back in and get a refund the following week.
