Vents come in 4 tiers basically
- E Vents
- Avatar Vents
- Helix Vents
- Cylus Vents
E vents are the top of the range tournament model with soft ears and a wide range of colours etc
Avatar vents are much the same, only with hard ears and a slightly more limited range of colours
Helix vents are a budget option of those, basically a step up from the Cylus goggles which are effectively site goggles.
I hope that helps
They're all good quality goggles, make no mistake, but I think the E vents or Avatar vents would be a more suitable investment if you're going to be playing a lot.