As for Ruger revolvers being "bulky", let make it straight and clear how all that started. Old Bill Ruger was one of the greatest visionary leaders in firearm industry and he saw a need for a modern, strong SA revolver. So, he created a Blackhawk. First a Flattop, but after realizing that revolver should be beefier for 44 Magnum, Old Model know as a 3 screw was created. Next, after understanding shortcomings of classic SA revolver, New Model, with transfer bar safety was born. In addition, NM Blackhawk was chambered in 45 Colt, giving to grand, old cartridge a new life, surpassing even mighty 44 Magnum.
When talking about light 1873 in 45 Colt, this is revolver excels for lighter game, shooting on the range and self defense. And I respect shooters who purchase such revolver. They new what they need.
However, if somebody wants a strong revolver, that will take 44 Magnum round without getting loose after less than 2000 rounds, there is no way that such revolver could have 34 oz. Same applies for revolver in 45 Colt, capable of lunching 300 to 360 grains bullets 1200+ fps. Some folks want it, and need heavier caliber for larger game. I am in this group, and getting 1873, even if it looks nice, is wasting of money.
In a nutshell, when talking about a 34-35 oz 1873 in 45 Colt, and 45-48 oz NMBH in 45 Colt, we are talking about two totally different revolvers, for two totally different applications. In that respect I just don't understand why somebody, who is perfectly happy with nice and sleek small pickup, bashing much more robust 1 ton pickup for heavier loads on farm or construction site.