If all you want to use the table for is crown moldings and simply router edges you may want to take a hard look at the link below.(plus it's in your price range)
Big crown moldings can be tricky to make on the standard router table but with the one below it's easy. ( from 2" to 6" are duck soup) plus it's a safe way.
Bosch makes great tools, I like the RA1181 over the RA1171 but that's just my 2 cents and it should work great for you.
But 200.oo bucks + 60.oo bucks + plus a router and your over your max by about 100.oo bucks, if all you want to do most of the time is ("crown moldings and simply router edges") you may want to look at a floor model shaper like the one from Grizzly ( 3/4 HP ) that comes ready to go so to speak, it's hvy. duty (cast iron & steel ) the cutters are almost the same as most router bits.
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