One thing you want to make sure of is that you can easily get parts for the kart you are looking at. I would highly suggest going to your local track and seeing what folks are running. I’m partial to Phantom chassis but there are man6 others that are good too. I like Phantom because it’s a good kart and I have a dealer within 15 miles of my house. You see in my signature my grandson rides an Eclipse. Though it’s a good kart, it’s a Ward era kart and it is hard to get OEM parts for. That’s the one I paid $600 for and ended up at $1500 before he hit the track. Looking back I wouldn’t have bought it. I wish I had spent $1500 - $2000 up front and bought a Phantom.