Like the Razor, Whiplash, Fuzion, MGP BP1, Rip rail, MADD Pro, Stiga, Kettler, and Radio Flyer ones available at Walmart and other department stores?
Edit: OK, time out.... I just looked at the scooters you are wanting. And if you are NOT a professional, and making money using a $750.00 scooter, I would purchase a $50-$100 one to mess around with. It should last you until you out grow it in five years.
Just because you have a Bugatti Veyron, it does not mean you are qualified to drive one...
A $750.00 scooter should be making you $1000.00 a week using it. If you are not making a living using the scooter, why tear up one that you could not afford if it breaks the first time out? Here is a question to ponder, can you afford to purchase a new one every month? If you are just using it for transportation, get one that is motorized. I will stop my rant now, best of luck to you.
Scary to think I used to do the same thing using a skateboard. But then some big kid stole a scooter from a five year old, and never returned it... err wait, that was Back to the Future, and the scooter was returned.