Looking at 20 year old vehicles

Hey everyone so I was looking into getting an older vehicle that doesn't have all the bells and whistles since I don't really have the need for them. I found three cars listed below. All the car faxes show one owner and consistent servicing I was just hoping to get a little insight on whether this would be a good decision since they are all almost 20 years old.

2007 Accord with 30k miles $9000

2004 civic 60k miles $8000

2005 Camry 20k miles $10500