I'd stay away from Vapir products. They don't hold up and you only get a 90 day warranty.

If you want portable, like the Vapir Oxygen Mini, the new I-inhale is the most stealthy portable on the market for the money.

If you want bag and direct draw in one unit like the Vapir One, get the herbalAire or Extreme.

For a standard size whip vape at a good price I'd go with the Da Buddha, from the maker of the Silver Surfer. For a little less $ (if you liked the Vapor Bros. box), the Vapor Warez Vaporcannon is $120 with extras, and has a 5 yr. warranty.

My favorite direct draw vape is the Purple-Days. Very stealth (comes with aroma cap to use as a diffuser) and a steal at $150. Probably the most reliable vape on the market.