I don't know where you can buy one now - but when the 8GB model first came out it was instantly out of stock everywhere except for aliexpress at suspicious pric

I don't know where you can buy one now - but when the 8GB model first came out it was instantly out of stock everywhere except for aliexpress at suspicious prices...it's an anecdote so it's not like I can give you % numbers, but I know 2 people who bought them and they were both clearly re-soldered units(they worked fine though, afaik they are still using them).