Oh, I don't disagree MySQL's replication is a pain in the ass as well - but the barrier to entry is much lower and from the outward appearance (e.g. looking at

Oh, I don't disagree MySQL's replication is a pain in the ass as well - but the barrier to entry is much lower and from the outward appearance (e.g. looking at it for the first time) it looks easy and functional. Slony on the other hand appears daunting from the first look.