Hi-Lifts are not for everyone. They are in itself a dangerous tool off-road to use. You must regularly use them to really get a feel on how to use them and when to use them. Looking at pictures or videos on how to use them is NOT good enough IMHO. I would bet that there have been more "oops" from using the Hi-Lift than it actually helping!
A lot of people who have them simply have them for the "coolness" factor. Lifting your vehicle on dry hard pavement is a lot different than lifting your vehicle over uneven soft/muddy terrain! Hi-Lift will certainly cause bodily injury and damage to your vehice if you're not a true expert in using it.
Many off-road enthusiasts recommend a good aftermarket bottle jack as a way more useful tool to use when you need to replace your tires.
Here is an off-road instructor's opinion on Hi-Lift:
"Hi Lift jacks are the worst, useless, heavy, bulky, unstable, dangerous add on anyone could carry in a 4x4.
I have seen them tip and fall many times and in one instance during lowering almost kill a guy (handle slipped out of his hand and hit his face hard - many broken skull bones and bad bleeding). Substitute winch? By the time you get the slack out of the line you get about a foot (30 cm) of winching distance out of them.
To change tires, nothing beats a strong bottle jack.
To winch, nothing beats a dedicated winch with at least 50 m of line and plenty of acccessories. Don't forget a high amp alternator."
So, again, Hi-Lift is not all that useful in the real world...and may be more dangerous than useful in some (most?) situations. If you're building a rig to look cool ("off-road bling") and attract girls, then yeah, it is a cheap mod.
