My Hutchinson Double Beadlock wheels weigh 40.5 lbs (see photo below) compared to (if my memory is correct) ~21 lbs for stock aluminum and ~34 lbs for stock steel wheels. So aluminum wheels are 33% lighter than stock steel wheels and Hutchinson's are 19% heavier than steel wheels. This isn’t a dramatic increase in weight.
Hmm, looks like you were a statistician for a marketing company.

Another way to state the weight difference of the Hutchinson beadlocks is that they are 98% heavier than a stock aluminum wheel. (BTW, when I turned mine in for scrap it came out to an even 100 lbs for five wheels, but that scale could have been off a few %. Your weight numbers are probably right on target).
I agree that the extra weight doesn't make a big difference at cruising speed but that's not where the mpgs hurt the most - it is acceleration from a standing stop that kills mpg, not cruising at a steady rate.
I do agree that true beadlocks make for a significant increase in performance off road but I don't think that difference is free: we know the extra initial cost but we also must factor in the nearly 80lbs of rotational mass as well as the extra cost for mounting and balancing, and that not all tire shops will handle beadlocks.
For Ray's use, where 15lbs of air pressure will get him out of most situations and for which he doesn't need beadlocks, I think he'd do better getting good tires on stock rims, getting a winch, not getting a lift, and maybe getting a snorkel.
Like any of the recommendations here it's a personal choice. Heck, I don't even have 35s due to the impact they have on the I5 and the challenging in climbing up the AZ mountain passes. Not much more $ to purchase them but the true cost of ownership outweighs the benefits, at least for me.