throb...I did look at the MAP tank system but decided on the VapeMate mainly for the following reason:
Juice volume/Convenience - the MAP has a 10ml tank and I didn't want to put that much juice in a feeder at one time. I wanted to keep juice tanks ready to go with different flavors and with the ~$30.00 price tag on the MAP tank, this was not cost effective. I hear the builder (mostrangrypirate) is gonna make a smaller one though (I think 5ml) so it might be a better option then...but still not as good as the VM me thinks for my needs anyway. The VapeMate uses 5ml bottles that can be screwed off/on the unit. So, I can keep several flavors ready to go and switch bottles very quickly. The unit comes with 2 bottles and you can get extra pack of 5 for $2.99. You can drain the MAP tank and refill but its a a lot more work and not as convenient as just swtiching bottles like the VM. I will admit that the MAP does look good on the Provari though.
I also looked at several other PVs:
A. Precise (Super T) - no variable voltage but extremely well built and over-the-top craftsmanship. The Provari isn't quite as nice on the craftsmanship side (close) but the Precise is not variable voltage.
B. Precious L (v2 by Caesar) - This one is variable and is made by one guy who lives in Romania. Can't get them atm since I guess he's totally swamped with orders. His site says its not available. On the other hand...I CAN get the Provari.
C. SabreTouch (VaporMoon) - This is another variable voltage mod but it seemed not as refined as I wanted (i.e. you change the voltage with a provided screwdriver used on a small screw in the body). Also, not as many voltage settings as the Provari.
D. FistPack (Nuck) - I didn't really want a "box" mod and this one has only four voltage settings from 4.3 - 5v. It does have a 2200mah battery setup though...nice. Pretty good craftsmanship but again, not as many voltage settings as the Provari.
E. Buzz (VariVolt) - Has variables but uses a screw again. This one has some refinement issues too. Not a native 510 device and uses an adapter. Still needs work IMO.
The variable voltage trend is the wave of the future for PV mods IMHO. The Provari seems to be on the cutting edge of this technology atm and it's available to the public. I'm a tech-geek too so this was right up my alley so to speak. I really like the idea of being able to custom-taylor my vape depending on the atty, carto, and juse combos I might use. The .1 increment setting modulations are small so you have tremendous control of the sitution at a hand. Very nice range of options available at your fingertips...literally.
The Provari is a well-built and visually appealing mod that uses intergrated circuitry. It boasts a highly level of craftsmanship and attention to detail. It has a full range of variable voltages from 3.3 all the way to a full 6v...at .1 increments up/down by simply tapping a button. It also reads out the current ohm resistance of whatever atty you have attached. This is an awesome feature since the ohm rating helps you know more accurately what voltage range to work in with any atty you use to get your custom vape. Oh, and the juice-well! Very nice. Deep AND it drains back into the atty!! Very cool feature. Another great feature is that because of the circuitry...it is able to use only ONE battery to get to 6v. This is quite innovative. No stacking of batteries, reversed polarity issues, or multiple batteries to charge. Nice and easy. The ProVari also has a slew of safety and monitoring features (you should really check these out too):
ProVari variable voltage e-cigarette! Order today!
The price is reduced atm from $199.00 to $159.00 so it's a great deal. Give it a look-see...I think you'll be impressed. Great reviews on it as well:
http://www.e-cigarette-forum.com/forum/electronic-cigarette-reviews/143766-first-impressions-new-provari.html
Pro Vari Review - Vapor Talk E Cig Forum
Provari Review
http://www.............com/showthread.php?t=26107
YouTube - PROVARI FINAL REVIEW shan burkholder shout out for the tank mods
YouTube - ProVari First Look
Anyhooo...hope that answers your questions and good luck. Keep vaping my friend!