I wouldn't say the Bullfrog X series is super high end. I would say it is the value line from bullfrog and would match well with the Viking. But they will get more money for the X series because of the name.
I disagree. Bullfrog's X series are really nice and built really well. They just don't have jetpaks and the warranty is 3 years rather than 5. They use the same molds, pumps, heaters, controls, acrylic, synthetic frame and abs base. The jets they do use are actually pretty good, just not jetpaks. I really like the triple spinner.
In my opinion viking does not come close to Bullfrog, even their x series. It's a hdpe plastic shell like a rotomold. They don't have very many jets and the ones they use are generic with a lot of bullet jets. I also don't like the fact that they advertise the best warranty in the industry but it's prorated to worthless after 2 years.
I have direct experience with both brands and Bullfrog blows away Viking. Not even close.
We're talking about Bullfrog's x series. They are their entry level and do not cost 10 grand. As low as $5700 actually. Also, never said viking was crap. They are fine for the money. I gave honest opinions about a $6k spa with actual facts and details to back it up. Not sure how you interpreted that to mean if you don't spend $10k it's crap. I pride myself on providing honest, objective information after 23 years in the industry.