JW what ppl thought of instead of keeping the prius for its entire life, trading it in while it is still of value for a new one. For me I think that would be the route to go.
A lot depends on battery technology in the near future and if gas goes back up to near $4 a gallon. If it does, you could probably get what you paid for your current Prius. If a decent plug-in becomes available for an affordable price, some may trade for that. If you had another vehicle you could use for long trips, having a plug-in for daily commutes, groceries, shopping, etc. would make sense.
I traded in a '01 Prius for the 2010. The GenI was down to about a 30 average mpg with now having 115,000 miles rolled by. The lower mileage was attributed to an aging battery that required a longer ICE run duration--hence, lower fuel economy. The rest of the car still looked and ran like it would last forever. These factors aided me in deciding to trade it in; while a dealer might be convinced of it's residual value.
My car was purchased during the boom, Gen2 Pack5, $27,574 + ttl or $30.4k otd for the car. I guarantee you, No car dealer would offer more than $18k for the car today or much more if gas prices peak this summer. That's over $12k loss, or what other kindly refer to as 'financial folly'. A trade in is simply a way for a dealer to make money twice on the 'trade-in'er' (I sound like Dub)... 1) They make money by taking your old car for less than they will sell it for 2) they make money by selling you a new car for less than they paid for it. Better to sell direct to a private party if one must sell. And what's the big deal about getting a 'certified used' car? You don't even get to see or talk to the previous owner. Last I saw is it gives a 7yr/100k powertrain warranty. Big deal. In buying from a private party, both could go to Toyota and have the car pre-sale inspected for a nomimal amount. Only thing is private party sellers don't finance, and I guess higher interest on used car loans.
Well one thing about trade ins is you get the tax break off the car. For me I ended up with private party sell value with the tax break off trading it in. Private Party is a great way to go to. You just have to do your homework and see what works out best. Anyhow back to topic for me.
While I agree with your #1 point, the #2 one is written incorrectly. 2) they make money by selling you a new car for MORE than they paid for it.