My first purchase was a mask because it was the one bit of kit that I could take to both walk-ons and punter days (delta force). I bought the Dye i3 Pros a few weeks ago and have since changed to the Dye i4's after trying them last week. I bought my Dye i4 second hand only because it had a decent looking lens and was a good price. I will be buying a new lens in a week or so though.
I went a bit nuts though when I first bought my kit. I found a Dye gen3 rotor on eBay for £40 and then the same guy was also selling all his old paintball gear. I ended up buying his rotor, gun, tank plus some other bits and bobs haha
I'm terrible for spending money and always chop and change what I want. So i bought a Proto Rail and that's me now looking to get a Dye Dam from a friend who goes to the same walk-ons as me!!
I'm hoping that this will be a marker that I can use for many months before needing or even wanting to change.