the 90 dollar one hes talking about is just a little 2stroker. i bought one last year just to run my saltwater fishtank in the event of a power outage. theres way too much effort and money in that to get wiped out due to a power outage. i bought a killawatt meter so i can monitor the load as it only takes like 800 watts. i can run my whole fish tank, tv, sat dish gear, internet and router, and a light all off that little thing. it uses almost no fuel aswell. i want to get the big 8700 they sell so i can run my electric water heater in the event of a large outage.