I have had an Endeavor HD 65mm spotting scope since early 2015. I legit have put it through hell and she has seen better days. I cannot complain about it especially for the price I paid. I bought it when Vanguard had a $100 rebate from a vendor on eBay and I made him a "best offer". Think I have $250 in it after rebate.
I think if I was in the market again for a budget spotter I would look at the Athlon Ares. People seem to be having great luck with them.