No contest. Nacra 6.0 is the better boat for you. Like posted earlier, unless the 6.0 has been abused, it is most definitely worth $500 more than the Hobie 18SX that is 7 years older. I still have my 1992 Nacra 6.0 and still race it occasionally when not on the ARC. I weigh 240# amd my crew is at 200#. When we double trap, it is blowing, and we go fast!. The boat handles the weight with no problem. We've cruised on it with 5 adults, but that is certainly not the norm.

Buy the Nacra 6.0 and don't look back. It will race, cruise, and like Mary said, it is not fragile to say the least.

Just my 2 cents.