One of my favorite beers. I love the taste of the Lager on a cool winters day. I have had multiple different types of octoberfest beers throughout my life and have found that Sam Adams is one of the best. If you enjoy this beer I would make sure to try the winter lager as well.
Depends on what you mean by economical. I think it might be a buck or two more expensive than your standard Bud or Bud Light twelve pack. (At least in NY). Even though it is a seasonal beer, it still is Sam Adams, so it's not as expensive as a microbrew or specialty beers. All that said, it's yummy, so definitely worth a try.