My car's[1] hybrid battery pack is dying after 8.5 years and 157k-miles. Replacement will be about 75% of the car's actual value, and apparently just ignoring it isn't an option because the car lacks an alternator, instead charging the engine battery through the hybrid system.
I'm leaning towards replacing the battery pack eventually (probably in a year or less, because it's down to about 15-20% capacity) because despite the cost it'll still be cheaper than buying a good used car, not to mention the time and hassle involved, plus I know this car's otherwise trouble-free (really, it's the best and most trouble-free car I've ever owned; my next car will very likely be a Honda) and has been taken care of pretty well, and I don't have any other motivation to sell the car so its resale value has little meaning.
Anyone have thoughts on which way I should go?
[1] '05 Civic Hybrid, owned since it was new.