
It may seem cool to be able to silently swoop and spiral around your backyard pool, but you better own an oil well -- or at least a battery factory -- if you're going to get one.
You can spend more money running it for an hour, than you spend to buy it.
The float uses 12 D cells (with no built-in charger); and a set of batteries will provide just a 15 minute cruise.
Alkaline D cells cost about a buck-fifty each. A full boatload will cost $18. That works out to $72 for an hour, plus sales tax.
If you want to emulate Gilligan's planned "three hour cruise," figure on spending close to $230 -- and you'll have to put Excalibur in dry dock every 15 minutes to change batteries.
Also, when you're onboard Excalibur, you're dry. You never touch the water, so why be in the pool? You may as well buy a boat, or stay in bed and save the money.
For comparison, a 80 horsepower outboard motor -- big enough for a 16-foot boat carrying six people -- will use about eight gallons of fuel per hour, costing about 32 bucks, less than half of the cost of propelling the inflated motorized pillow with one aboard.
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