Comparing 1993 prices with those of today CPI adjusted DOES prove the point that gear is cheaper, simply because of the fact that the modern boards are made with much more exotic materials, are lighter and perform better than in 1993, yet they are cheaper.
The $1799 board of today is the high tech equivalent of the '93 $2000 plus models.
Stehseglar's point about stuff being cheaper in Europe is a valid arguement, but only in regards to questioning why different regions have different price structures for products. We could all name a product we have seen much cheaper in another part of the world. But the price of windsurfing gear in Oz has remained the same or decreased over 20 years
despite the massive increase in costs in almost all other aspects of Aussie life.
The mountain bike example is a perfect example of what price increases in an industry has occurred over the years for two points.
First it shows what people will spend on a hobby (probably as they can use it regardless of weather) when they want to.
Secondly it shows the massive increase in bike costs in an industry that must be 50 plus times larger at least than a windsurfing market. In the early 1990's you could get a good bike for $199 and great bike for $399. Now not much in the stores are under $500 except for the cheap chinese made stuff, and as has been said before Good to top of the range bikes start at $1000 and go to $5-8-9000.
Bikes should be cheap if so many are sold in an expanding market. Are the bike companies over charging us making too much money????

Are the store owners all rich??