My 4X4-nut-friends all say the same thing.
1. "Stretchie" winch lines kill people.
2. A normal boat anchor can be your best friend in a desert situation, along with an army shovel or other digging tool. Use chain to adhere to it, NOT rope. It sinks as you put more weight against it as long as you use it right...which becomes apparent as soon as you try it.
3. I second, third and fourth HDR's statement about a come-along. SCREW THAT.
My car trailer has a 9,000# winch on it. Never regretted the battery, winch..or the added weight. It has ended up bringing several out of the Quartzsite doldrums...and even one @ the slabs.
I can hit the remote and make the stuck truck help with light throttle application when using a winch. Rarely do you end up needing the winch for more than a few feet before the stuck unit takes over itself.
Cannot do that with a back/shoulder killing cheap ass come-along.
All the "4X4" units seem made too wimpy for repeated use anyway.
Most people try one time too many when they get stuck.
Once you start digging holes, the faster you exit the drivers seat and resort to a shovel, the easier on your truck and usually...the quicker you get yourself out.