Yes, the ProVari is the highest quality and you will pay for that. And if the price isn't an issue for you, you will be VERY happy.
But as an option, consider the Zmax instead of the Vmax (both from SmokTech). The Zmax is variable wattage and the price has just dropped to $90 at MadVapes (note no affiliation) minus another 10% currently. VW frees you from recalculation of power (watts) to determine the voltage to set to when changing cartos/clearos/tanks.
Variable voltage swept through the industry and is now widely adopted but variable wattage is clearly superior in some respects. ProVari may resist but will probably have to adopt at some point if ProVapes intends to remain a technological leader. I predict we will see a ProVari v3 at some point so is it worth it to wait or hope for a v2 to v3 upgrade? Only you can decide.
Regardless, you will surely get a good vape from a ProVari, a Vmax or a Zmax, so buy whatever best fits your needs and desires.