If you can get it for $100 with the battery pack that's a good deal. The combo is usually $125. I'd be surprised if a shop had it any cheaper. They seem to have higher prices than online stores. Without the BP it doesn't have much going for it IMO.

I have no idea what the percentage of failures is. But of the major brand names, Vapir brings up the rear. It's mostly because they use digital and fans in low priced units-lots of stuff to go wrong. The 90 day warranty reflects their confidance. Most brands give you 2-5 years. You hear some talk of lifetime warranties, including Vapir (the Vapormatic anyway), but if you read the fine print it's only the heating element that's guranteed-no big deal.

The Oxygen Mini is the best offering from Vapir though, as far as reliability vs. cost. You may get years of service out of it. If you're not going to use it as a portable with the BP though, I'd get a full size box vape. $120 will get you a Vaporwarez Vaporcannon with a 5 yr. warranty-a much more satisfactory vape. Don't know if you'd have any luck finding it locally though.