I would personally go for PF30 +
a hambini BB, which would end up being roughly the same price as the T47 but marginally lighter and stiffer. I doubt the galling chaadster mentioned would be an issue either, since the BB is basically a permanent installation.
EDIT: to answer your question "
if it were so disadvantageous to have a press fit BB, why would bike manufacturers offer it?". It's not "disadvantageous". It's just easier to get away with horrible manufacturing. PF is lighter, stiffer and cheaper. Threaded is just easier to service at home but more importantly, it forces bike manufacturers to meet a minimum threshold of quality. You can't screw in your BB if the hole is oval.