1st don't buy any Astro older then 1996, for ride and seat comfort.
1996 and newer, don't give the appearance of a cargo van inside.
Have your Mechanic check all steering components, vans are know for ball joints, and Idle arms. Some years I believe, 1997 are know for going thru front brakes. I have a 1996 Astro 2WD, 200,000kms, things I have had to fix in the year I have own it, Alternator, rear brake cylinder, ball joints, idle arms. They are great at towing, we tow a 2000lb tent trailer all over the place, and you barely notice the trailer behind. Its great if you have a family lots of room. Recommend the 4 captain seats and 1 bench seat style. Downfalls, it is a big vehicle and has taken my wife a while to used backing it up, because you seat higher, If you like to work on the vehicle yourself, you might find in tight for space to work on. Bottom Line, yes I would buy another