Agave going extinct?

A friend of mine told me the other day that the price of tequila is about to go way up, because the agave used to make tequila is nearly extinct. Blue Agave takes 8-10 years to reach maturity, so, this is perhaps believable. I know several people who refuse to drink tequila because they claim it is a horrilble waste of resources. Anyway, it seems that any intelligent tequila fermenter would have fields and fields of this stuff growing so as keep a steady supply.

I did a google search, and the closest thing I could find was that some species of agave in the US are endangered.

So, anyone know if there’s any truth to Blue agave going extinct, tequila becoming an expensive sought after drink, available only to the wealthy, margaritas becoming a thing of the past, and too many other horrors to name?