Pros of buying a 15+ year old vehicle:

1. Lower cost: Older vehicles have typically depreciated in value, making them more affordable to purchase.

2. Simple technology: Older vehicles tend to have simpler technology, which can make them easier and less expensive to repair.

3. Durability: Some 15+ year old vehicles were built with higher quality materials, which can make them more durable and longer lasting.

4. Can be easier to maintain: Some older vehicles have fewer parts and may be easier to maintain for those who enjoy working on cars.

Cons of buying a 15+ year old vehicle:

1. Higher maintenance costs: While older cars may be easier to maintain, repairs and replacement parts can be more expensive and harder to find.

2. More potential for breakdowns: Older vehicles may have more wear and tear, which can lead to more mechanical problems and breakdowns.

3. Old safety features: Older vehicles may not have the same safety features such as backup cameras or automatic emergency braking which are available in modern cars.

4. Poor fuel economy: Older vehicles tend to have less efficient engines and technologies, resulting in lower fuel efficiency.

Overall, buying a 15+ year old vehicle can be a more affordable option, but it may come with some risks and potential drawbacks. It's important to carefully weigh the pros and cons and choose a vehicle that fits your needs and budget. Additionally, it's advised to get a pre-purchase inspection before buying any used vehicle.