Actually I had bought a Kindle Keyboard 3G in 2011, which at the time cost $189, so not that far from the cost of a Kindle Oasis today. It served me well for many years.

While it's still working (and the keyboard is so nice to use to type in notes) the plastic case has become "sticky" and a kind of thick film comes off in places. It's strange and very unpleasant.

Recently the battery died, I refurbished it with a new battery from Aliexpress and it came back to life. When the Oasis arrived I gave the 3G to my kids.