I, too, am a hobby beekeeper.  Two years ago I started with one hive, and it was a doozy!  The queen was calm and easy going.  I often worked the hive without smoking or using a bee suit.  Sadly, the hive got bumped some time in the winter and the hive froze to death.  The good news was that I was able to harvest almost 60 lbs of honey.  
Last year I doubled down with two hives, but we got bad bees and crappy queens.  Both hives died out in a matter of weeks, even though I re-queened both. 
This year I doubled down again and went to 4 hives.  I got four great packages of bees, in a matter of days the queen was laying eggs like mad, the workers were storing honey and more importantly loads of pollen.  With any luck at all I will be swimming in honey this fall!!!
I hope to build a few more hive boxes this winter so I can go pick up some wild swarms, too.  It's cool to know that when they swarm they have no hive to protect....you have to damage a bunch of bees before they consider stinging.  You can literally pick up the swarm in your hands and carry them off!  Don't try that with a bunch of bees with a hive to protect, though.  Best of all, up here we have no Africanized bees, wild swarms tend to be pretty good producers that are calm and gentle to work.