Just a possibly indicative comment from me here if you don't mind... I bought the RX200 last night and will be buying the DNA200 version as well in the next few weeks when my wallet gains a little weight. I am new to TC and appreciate the simplicity of the RX but also want to educate myself with the dna device eventually so I'm getting both. Yes, for me it will be worth the extra cash but that's just me. I also took possession of a Treebox a couple days ago (and I really like it) and will soon have 3 high wattage devices, all capable of temp control.
But it must be said: I have not used my V-2 Provari even once for the past 3 days, for the first time since I bought it in 2012. It had been used every single day and has had an extremely tough life, so today I took it off my desk, lovingly cleaned and polished it and put it back in it's original box and sealed it in dry-storage. It's likely just a museum piece for me now. I dunno how many other Provari owners share my experience, but I am thinking I am actually late to this game and most of the horses have already bolted from the barn, so to speak.
Personally -- and I say this with all due respect to a manufacturer who built me a cherished device -- I think Provape missed the boat and are now possibly forever doomed to play catch-up. The fanbois are dying off and one will soon be able to count them, but that is not saying it is/was a bad or poor device because it definitely isn't. It's just a pretty, well made and beloved thing of the past now.
I have no doubt I will enjoy my new devices, but I doubt ever quite as much as my Provari -- quite simply because it saved my life. My new toys will be just that, toys -- good and amazingly sophisticated marvels that they are.
Just my further two bits.