Why would you sell an awesome rocket like a Slingshot because of a post on a forum, don't you guy's all just do this when you are bored and their is no wind? Avoid hindsight mate, its shitty. Have you ever flown other kites anyway?
Just thank God you don't ride Airush kites
If you have already sold your kite though, maybe you should find a good investment, watch your cash grow for a couple of months, then be the first crook cunt to get the new Slingie crack whore! Always an upside!