APS & Rattlesnake Guy:
Very good points. My guess is that knowing what the gallons sold on the lake would be very telling, albeit as APS notes one would need to be adjustments for changing composition of boats, etc. Boat registration information in the state would also be a good way to judge what is happening. My feeling is that things are down incrementally, but nothing too drastic. Sort of like what is happening in housing.
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