Frank and his product ARX do have some fairly large companies behind him to defend the patent. I think the patent was written pretty well, so as to promote defendability.
In a dream world, ARX would be priced similar to cheap solvents. But unfortunetly with ARX you have dollars in each bottle, compared to pennies in traditional solvent flush products. The mark ups in solvents from the retailers are much higher than what a retailer could expect from retailing ARX. I would say that the same mindset exists with large oil companies. That being that they are putting pennies or may be dimes of raw materials into oil adds, vs having to put in dollars worth of adds.
So yeah, ARX is top tier. But to Franks credit and from some advice from some well respected BITOG'ers, the price of ARX is actually lower than it was a couple years ago. The only exception is the single bottle price. But this is due to the fact that the freight charge that Frank pays on a solo bottle order is twice what it was just two years ago. But if you look at the volume discount pricing starting at a two bottle purchase, the price per bottle is substantially lower. I think that Franks approach of making the product affordable, without compromize on performance speaks volumes to his comitment to get this technology mainstream.