I own a Provari, 2 Semovars, an eVic, Vamo, Sigelei Zmax and other stuff. To be honest I wouldn't lose a whole lot of sleep if I learned all I could use were the Vamo or Zmax for the rest of my life. The Semovars and Provari to me perform marginally better but not night and day better. For me their main advantages are not strict vape performance. I'm very pleased strictly with the performance of all of the above.
As with other products there's a lot of hype and people merely wanting to believe their device performs head and shoulders better than the rest. I have no doubt they have convinced themselves that they are right. By nature people always want to convince themselves they've made the better choice and seek justification. Reinforcement via other enthusiasts via internet forums seeking reinforcement themselves just build on it.
For me the belief that 33 mhz device vape performance is drastically inferior is flawed. Its power output may not be as pretty on an oscilloscope but I personally don't watch an oscilloscope while vaping.
I do often think about the old story of the emperor's new clothes...