I have noticed more people switching to cheaper forms of rc racing like minis, where you don't have to shell out for new mini pins every 3 weeks, and you can just chuck a black can motor in, run el cheapo 27 mhz radio gear and still be competitive. Also you can do a triple somersault with a pike twist in a mini and still just drive away, no breakages.
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I have also noticed more people selling up on here and fleabay with finances as a reason for selling.
That said there is still a good turnout at our club on Fiday nights of all formula's, and many new faces too!
My answer to the credit cruch is simple, just turn to male prostitution to fund your buggy racing habit. Simples.