Actually, the Buzz Pro is a very good VV APV, and I would choose it in a heartbeat. The LavaTube 2.0 is not out, not a lot of reviews, and has been delayed some. It looks good, no doubt, but the original LT had many features reported that the unit could not deliver. Cheaply made too. The Buzz Pro will not fall apart on you unless you are very rough and abusive.
NotCigs often run sales for the BP, and sometimes you can get a new one for $100. Another option is to get verified and check the classifieds on here. There are some ranging from $70-$110 that include batteries and chargers.
Good luck!