My first smart phone was a Samsung Galaxy S3 then the S6 and now the S9+. One of the main reasons I broke down and got a new phone is I knew the longer I waited that my trade in would be worth less and less. I was surprised to only get $50 trade in on my S6. I am happy with my S9+ so far and I will not be upgrading for awhile. I could have lived with the S6 as it was still performing very well and there was nothing wrong with it.