+1 for dispelling the myth that the 90 series is light duty.. look at their running gear and physical size beside other 'light duty' 4x4s and you'll see the difference (see Terrano, Trooper, Shogun et al... the 95 is a big, strong machine)
Longevity of the engine is not a problem, as others have said, it's the rust.. mine was built in 2002, and has been to the moon and halfway back again, without any mechanical breakdown bar a ball joint failure (its had a few bits replaced, but nothing else that ever stopped it driving) I had to sink a good chunk of wedge into rust repairs on the rear chassis last year.. and I know I'll be chasing little bits of body rust for a time to come..
I've driven 120s, and while comfortable, have less soul than a 90, while having the same rust issues, possibly sooner than the 90 too. I love the idea of a lazy 4.2 in-line 6 purring along, but as things stand, they are unaffordable in more ways than one for me.