Ah, the enthusiasm of the new zealot. You're missing out on some amazing beer if you choose just to drink your own. Like Kallen said, trying new beers and especially new styles is how you become a better brewer. I've probably drank MORE commercial brew since I became a brewer, ESPECIALLY discovering styles I've never had before. I've been drinking craft beer since the mid 80's, and only been brewing in the last 10 years, and it's been since I've homebrewed that I've actually consumed a broader range of styles.
For pretty much all those decades of drinking craft brew I drank pretty much only IPA, Pale Ales, Porters, Stouts, Browns, California Common Beers and Reds. I drank a lot of them, I drank them from breweries around the world, and considered myself a pretty knowledgeable beer guy.....but my palate or my exploration was pretty limited to that narrow band of pretty common beer styles.
But since taking up this hobby, and wanting to learn to brew more and more styles, I've DRANK more and more styles.
Just off the top of my head; Wits, Bocks, Vienna Lagers, Doppelbocs, Maibocs, Cream Ales, Pilsners, Dortmunders, Lambics, Oktoberfests, Munich Dunkel, Schwarzbier, Blonde Ale, Kölsch, Rye Beer, Ordinary Bitter, ESB, Scottish Wee Heavy, saison, Biere De Garde, Barleywine, Flander's Red, Belgian Dubbel, Belgian Tripel....AND just in the last couple years actually started enjoying BMC beers which I snubbed since being old enough to drink.....I can say that these styles for me are ONLY as old as my brewing has been. If I hadn't brewed, I probably never would have tried half of them.
And I've brewed maybe only 1/3 of those styles.
I know it's the enthusiasm of the newly converted, but you really think your beer is better than ALL the amazing beers on this planet, and you REALLY want to shun them?