The question is, is it sustainable? A fan base can put up with large price increases for a short time, but can it put up with it for 30 years?
The issue long-term is that it eventually limits your market. Harley Davidson saw this happen when they initiated rapid price increases. They crowded out a younger generation who turned to other manufacturers and a decade or two hence they were left with a very old fan base. What would have been the younger replacements that were not interested because Harley Davidson was completely out of their price range and had gone onto other competitors.
A similar thing happened with NASCAR. NASCAR rapidly increased their pricing and priced out their traditional base. As a result they too wound up with a very old remaining customer base. Younger fans were never made because their parents couldn’t afford to go to the now very expensive races, and now NASCAR is confronted with the specter of having to go and reduce the size of their stadiums.