And besides, for that money... I would be working up a cogen setup with a new 1800rpm diesel, but utilizing the waste heat for my garage.
I know right, sinking over $9k (I would surmise that this is around 75% of new MEP-1040 acquisition cost to Uncle Sam?) into an emergency backup for my house puts me into the territory of "screw it, let's just stay in a hotel" after a hurricane for my family's situation.
A 1 in 100 year hurricane (Hurricane Michael, etc.) putting you out of power for a month would still be cheaper in a hotel at these prices, and could potentially be covered by insurance (with the right policy). Furthermore, if a 1/100 storm comes through as a direct hit, there might not be much left in areas where power is out for a month so a generator might be a moot point?
In a place like where Michael hit, apparently 95% of the homes had power restored within 13 days by Gulf Power according to their website. I would surmise most of us on here see less than 100 hours of service per year on our gensets with normal outages (used as standby / backup generators for our homes, not off grid work so to speak), so 3 years of use in 1 'black swan' event.
Using a 500 hour amortization schedule on the unit (I'd guess 5 years of 'regular' use), that 9000 dollar used genset is going to cost you $18/Hour before fuel. Using the data tag information of .69 gallons of fuel per hour, with fuel being approximately 3.00 per gallon ($2.07 per hour at this burn rate), your surplus genset is costing you approximately $20 per hour, excluding unscheduled maintenance and associated PM costs.
Running 24 hours a day costs you $480, and that notional 30 day outage will set you back a cool $14,400. A mid tier hotel like a Hampton Inn or Courtyard by Marriott is going to set you back around 150-200 per day, and you'll get breakfast in the morning. ****, you could rent an apartment for that same running for a month price for a year in some places.
I got my MEP-803A after Irma and still feel like I overpaid a bit (bought 2 units and the prices averaged out to $1700-$1800 each and I had to put an additional $500-700 work into them combined) due to disaster surge pricing, but in the end buying a military generator was a Hobby purchase for me... something to tinker with and have something useful to my family and myself at the end of the day. At approaching $10K, I'd rather buy a used boat.
I have a feeling that deals on GP are not really a thing anymore. Perhaps the military vehicles and aux equipment are victims of what we could call the "Steel Soldiers" effect? There is so much knowledge and information sharing on here that it becomes public knowledge with a quick google search and folks capitalize on it. When I looked on the auction site, it says 96,000 people participating?
I think Yogi Berra said it best regarding the GP auctions, "Nobody goes there any more, it's too crowded."