Only the hipsters and the luddites seek those out. They're too overprices for something you'll intentionally drive into a tree at some point. Most 4x4 enthusiasts are using pre-OBD2 and 1st gen OBD2 vehicles since they're cheap and plentiful.

I'm not into 4x4s at all but I like pure mechanical diesels for their simplicity and overall robustness (and distinctive sound, especially the 2-stroke variety) - no electrics or electronics at all, so completely immune to EMP, and doesn't generate any electrical noise on its own either. On the other hand, the emissions aren't great but I suppose they could be tuned to minimise that; it's just that most diesel enthusiasts are tuning for power (and smoke) instead.

I'm looking for a pre 98 dodge exactly for these reasons.