Is it worth spending big money on sprockets??? Sidewinder has titanium ones that cost 130 dollars! Their sales pitch is that it lasts 9 times longer than renthal. He said that their aluminum out lasted renthal 3 times longer. I need new sprockets but dont know what to get. Does it really matter?

 

IMO it is worth it.
The longer the sprockets last the longer the chain will last.
I think you save money in the long run.
Always buy the best you can afford. Going cheap only costs you more money in the long run. JMO