I think this article from Epi-Log on Epicurious.com pretty much speaks for itself. While not known for being a fan of Tabasco, or their products, this might almost be worth forking out a few bucks:

Chile Head Alert: Limited-Edition Tabasco Sauce
by Megan O. Steintrager
on 05/22/08 at 06:40 PM

All you hot sauce collectors out there might want to consider heading over to Tabasco.com for a bottle of limited-edition Avery Island Reserve Tabasco, named after the island in south Louisiana where the sauce was created by Edmund McIlhenny and is still made. To celebrate its 140th anniversary, the family-owned McIlhenny Company released 2,500 5-ounce bottles of the fiery stuff.

What makes it so special? “Avery Island Reserve is aged and processed the same as original Tabasco Sauce,” says Paul McIlhenny, president and CEO of McIlhenny Company. “The difference is that it’s made from just the finest Avery Island peppers that are hand-selected by McIlhenny family members. Because these peppers are at their peak ripeness – fiery in color and heat – the Reserve is noticeably brighter in color and heat.”

Click here to read the rest of the source article