I have a 2003 AWD. And therein is really the answer to your question: it's 15 years old.
Things are going to go wrong, for sure. I bought mine from a friend who is meticulous with maintenance, and still I've had to repair/replace a rear throw out bearing, the fan clutch, the thermostat, the ABS module (twice), the hydroboost unit, and the aforementioned fuel injection spider (also twice because the first replacement part was defective - total PITA).
Next on my list are the A/C blower fan and its resistor pack and a vacuum canister (which btw is unavailable retail; I have to pull one off a pick n pull donor).
So you might wonder if I'd do it again or get another Astro. Definitely. They're inexpensive and have a ton of potential. They fit in any parking space (smaller than a Lexus ES350) and the visibility is better than any car I've ever driven.
I've lifted mine 4" and added nice wheels and tires. It takes me everywhere I want to go and gets tons of attention along the way. Just this weekend, in fact, two guys in a 911 GT3 ($147K in case you're wondering; I Googled to check!) gave me huge thumbs up and the passenger yelled out the window, "I LOVE that!!."
I picked up a used Westfalia propane tank yesterday for $20. And my neighbor gave me three used 10-gallon stainless steel pool filter canisters that I'm going to re-purpose into water tanks that will mount where the spare tire is now by moving the spare up to a custom rear door swingout.
A roof rack, solar, a 12v fridge and interior buildout are in process too. At some point I'll do a V-8 swap with hi-lo 4x4 transfer case.
Quite a transformation for something that started life as a kid hauler. And even when all is said and done, I'll be in it for less than $25K. For me, that's the fun of it. I can do something totally capable and totally custom without having to donate an organ.