On my OB, one of the temp switches/sensors has a wire that is loose/disconnected.  It's been this way since I bought the boat.  I know, I know...  I should have gotten it fixed a long time ago.
But I always figured that if I had water coming out of the flow port, then everything was fine.  So, since I have nothing to do at work today, I started looking up parts for the boat.  Specifically, the port-side temp switch for my motor:  0585203 - Temp switch assembly, port
This was the first price listing I came across:
http://www.marineengine.com/newparts/part_details.php?pnum=OMC585203      OMG!!!  
 I've since found a new one listed on ebay for about $100.  Still a lot of money for a part that, rolled up, can fit in my palm with my fist closed!
There's got to be a place for less expensive parts, right?  Or is this the cost of an OB versus all the other maintenance required with an I/O? 
