You've already waited several months. Unless you are to the point of pulling the trigger now, wait aother two or three more months for mod-makers to get their products out with the DNA20 chips.
However, depending upon if you have a variety of different ohm heating elements or have settled on one ohm in particular, variable wattage may or may not be that advantageous for you.
The Provari can be ordered today and you will likely have it in your hands the following week if not sooner. It has been the gold standard of variable voltage since it was introduced a couple of years ago, and even when more variable voltage
devices are out on the market, the Provari will continue to be a highly sought after
device because of its quality, durability, and customer service.
I have the Provari. I use the same 3.0 ohm cartomizer in all of my cartotanks. That's all I need for a great vape. I have absolutely no use for variable wattage because I have settled on the one specific ohm heating coil.
Even if you get the Provari and later find that you want variable wattage, the Provari's have proven time after time to hold their resale value at or just below initial costs. Get verified and put it on the classifieds and sell it in no time.