What are your main objections to trying GOOD beer?

I'm speaking to those Bud/Miller/Coors people out there: With so much GOOD craft beer out there, what are your main objections to trying something new. This also applies to Sam Adams drinkers as Boston Beer is considered (by those in the know) to only be a slight step up from the BMC type beers. I know there are a lot of good bottle shops and specialty stores out there, but yet on here all I see are people talking about the usual. I see one or two people who seem knowledgeable (Alesmith being one) but for the most part all I see are questions about BMC, Sam Adams, Corona, Heineken and Guieness (all crap). Have you had bad experiences? Elaborate.