Cheryl,
It is approximately $20-25 each way to take a taxi into Puerto Vallarta, so you can base your decision on how many trips you think you will make into PV vs. how much the rental car will cost you. You are coming down at the very end of the slow season so traffic will not be as crazy as it will in a month or so. If you are not planning on doing the full on driving all over sightseeing this trip you might just want to pay the taxi. You can also take a bus from Nuevo, it is alot cheaper but it takes longer while they make the stops. Go to La Laguna in Nuevo for dinner one night it is excellent!
It is approximately $20-25 each way to take a taxi into Puerto Vallarta, so you can base your decision on how many trips you think you will make into PV vs. how much the rental car will cost you. You are coming down at the very end of the slow season so traffic will not be as crazy as it will in a month or so. If you are not planning on doing the full on driving all over sightseeing this trip you might just want to pay the taxi. You can also take a bus from Nuevo, it is alot cheaper but it takes longer while they make the stops. Go to La Laguna in Nuevo for dinner one night it is excellent!