That's not a bad price for ball lock kegs, but pin locks are are $35 with flat rate shipping from Kegconnection.com Or 4-pack of pin locks from homebrewing.org are $100 and shipping from Michigan to Kentucky is only $16. Still cheaper than their price.
I like the pin lock. No worry of mixing up disconnects. Plus they fit in my mini fridge without bending the freezer out of the way.