<beerSnob>
Being from central Jersey, BMC is almost a way of life growing up. About 10 years ago, one of the older (40s?) guys that I was going to tech school with raved about Sam Adams. (It really is the only thing I remember him ever talking about). Long story short, after I started drinking Sam, I never went back to Bud. Years later I went to a Stones concert at Giants Stadium with my Father and thats all they were serving (BMC), so I'm like, ok whatever. I couldn't even choke it down.
</beerSnob>
That all being said. I am able to put away more Sam, Bass, Killians, Yeungling Black And Tans, Brooklyns, Sierras, etc, than I can of my home brew. With my lazy hydrometer taking skills I'm not sure what my batches are ringing in at, but I'd guess most if not all were over 5%. Sam Winter is the only commercial I think, that I drink that is close. So I guess it's really just the math that tells the story.
Or maybe I'm misunderstanding you, do you mean you find yourself drinking more BMC since starting homebrewing, rather than just saying it takes more BMC to get you drunk? (semantics)...