Replying to Scooter kids, I need help!

I know there are some younger folks here snaking lines at the skate park on scooters and I need your help. I'm shopping trick scooters for my kids and there are a million brands that all look the same and have the same specs. Kids are 7 and 10.

One of the neighbourhood kids has an Envy (the lowest model) and it seems cool but it's $160 which seems high. It's the right size for my daughter and a bit small for my son.

Please let me know what brands are good and relatively affordable so my kids can snake your lines at the park, just kidding they're learning park etiquette pretty well already. I have a $75 Amazon gift card I'd love to use on these.