I’m one of those that likes the basic, no frills type mask. Low volume, black skirt, nothing special. Like Greg, I think the purge is just one more thing to go bad. But, that being said as my opinion, I have heard from students and other people that had troubles clearing the "normal" way, that the purge was their favorite "gimmick." It helped them clear when they didn’t think they would be able to get past that part. So, as with everything, we all have varying opinions. It’s great to hear what other people think, (I ask those same type questions a lot) but your own opinion is the only one that will matter in the end.. ;) Hope you are happy with whatever you decide to get..
Dale