Buying a 2nd hand esc?

[Jnunu1]

Hi

As title, is it ever worth buying a second hand esc? I am looking to upgrade from my "starter" Hobbywing 35a and 9T system. I have got a second hand 6.5t SP V3 but I am more worried about a second hand esc being reliable etc.

Is it better to pay the £100 +/- £30 for a new one which will last me and have a warrenty etc?

I know its a bit of a "pays yer money..." style question but other peoples experiences would be valued!

Cheers