[xupybd]

I'd agree with your point about replication. PostgreSQL is amazing but falls over in a HA setting. If people are willing to put up with MySQL to get good replication, that speaks volumes. That said I'm hoping this will soon change in 10 ~fingers crossed~.

[bfrog]

HA is relatively painless even with 9.x if your ok with wal replication. The problem there though is like they say in the paper, the amount of crap that is sent over the wire is pretty substantial.