At least two new BR players recently caught my eye, that may be about to tip the scale toward more 'mass adoption'.
Both LG and now JVC have built BR players that do much more than simply play discs. The LG seems to do AVCHD as well as both Divx-HD and MKV, while the JVC touts both HDMI 1.3a (or something like that), plus BD+/internet features, plays MKV, and supposedly extremly fast loading to play. I've searched around for good reviews on either machine, but they're simply too new as of yet.
Since both players are internet capable, therefore can have their operating systems upgraded via that spigot.
NOW they're starting to get smart. Especially as the pricing seems to be at or below $300.