I'm definitely considering buying some brownies these days.
While 1hr of your time (e.g. Mumble attendance) is currently worth around $3 in Brownie, it's certainly more cost-effective right now to work for another currency. Whether this is because BM's appreciation (invaluable of course) is inherently not
valuable in $$ - or simply not yet
correctly valued in $$ - seems to be the 9.2 million Brownie question. Another sharedrop on Brownie may answer this
It does strike me as odd that a proven sharedrop candidate like Brownie which is instantly convertible to BTS (and thus has the same utility) but which represents a much more concentrated demographic (read; valuable target, if you buy into Stan's smart-drop theory) is currently capitalized at only a little over 3% of BTS.