I would definitely pay 30 dollars for a mask that would last, lol!
It seems like a good price for quality, and both the Kensingtons and Cashels are around that range. I was comparing two masks from both brands and the Kensington mask with ears and nose flap took a real rap in reviews... apparently they're durable, but the velcro on the nose rubs and the fabric between the ears is way too narrow. It's the only one with a nose flap and ears, too. The (only) mask with ears seemed to get great reviews, but it still seemed to have the problem of rubbing and being too tight in the ears, plus I'm concerned about the fleece- might it be too hot in 100+ degree heat?
On the other hand, the Cashel I was looking at with ears seemed to have a problem with the elastic stretching and the nose being too big for an arabian (which is what Envi is)? Has anyone had these problems? The Cashel with ears and nose seemed to get great reviews, though- and it has a long nose flap for Gerri's long face, which was a concern of mine.