If the saddles get any heavier a strong man will be needed to get it on the horse. Ever notice when watching a video of a western pleasure class how one horse seems to look like the others, all the bays. I guess a distinct saddle helps the rider stand out. Judges being men, I'd think a big set of hooters, real or not, would get you noticed, the silver wouldn't even be noticed. Judges don't look at the silver anyway, the competitors have to have better than anyone else.
You may have a 20,000 show saddle and a 5,000 show jacket, but most people forget its based on the horse, and the rider :)
I have personally heard that Dale Chavez saddles are very uncomfortable.
Right now, people are just wearing buttoned down shirts from places like Express, they are nicely tailored cotton shirts.
As for the saddle, try tack trader