I like them.
(As for you mudders out there, you're welcome to have your fun as well.)
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mine is already 8.7" off the ground... dont know if i would want to lift it anymore
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^ I'd say the Subaru would have a much flatter bottom then a truck, trucks looks like they have a lot of ground clearance, most have way too many hang-up points that limit you from sliding over rocks... you could probably bolt a flat piece of sheet metal to the bottom of a Subaru.
Truck 4WD can be pretty low-tech... some even have open diffs or manual locking. Subaru's have a sophisticated system that can find traction with one wheel. Not as robust, but very capable... I'd say the truck would be better for a seasoned off roader, but to have fun or participate in a rally event I'd take the Subaru system.
There are people who amateur/pro-level rally their cars on this continent... most of the lifted Subaru's are probably rally enthusiasts.
When I had my Audi A4 I really wanted to lift and and put bigger tires on it... the only limiting thing on a car AWD system is the clearance... Obviously there are people who just want to do it for the fun of it. The better question is why not buy a lifted Subaru instead of a truck?