And I filled up Nookie's tank again today: 7.25 gallons. That's a little over 225 miles. With the 'Sploder, that would have been probably a 16 or 17 gallon fill with more expensive gas. Figure $68 for the 'Sploder, and $28 for Nookie for the same period. $40 savings a week at current gas prices, so figure roughly $2k/yr. It's not enough to make up for the payments on a car loan, but it's a pretty significant dent, and when you consider the possibility of some serious repairs coming down the pike on a vehicle that was pushing 200,000 miles, it was a good investment.
I call it an investment, but that's not really the case. A vehicle steadily loses value as it ages, some more than others, but it's rare to find a vehicle that actually appreciates in value. Collector vehicles are the exception, but those are rarely driven day-to-day, and realistically, a vehicle today is pretty much deflated in value after 10 years.
That may change, but I expect that automotive energy technology will be in an entirely different place in 10 years than it is today. Electrics will probably be commonplace, passenger cars will be smaller and lighter, and today's hybrid will likely be a gas-guzzling monster.
Then again, I could be wrong, and in ten years we may be back to a post-apocalyptic world of burning books for warmth and cooking the slow and unwitting neighborhood children to stave off starvation-- as opposed to now when we do it just for sport.