No doubt, light is good, but money wasn't a huge factor for me when I recently bought a PRO. It was a factor, but not the only one.
I expected to hate the PRO's mount and that the optic and mount would feel like a brick. I dropped one on my rifle at a local range and was surprised. I liked the mount. It was super easy to use, secure, and did not mar or gouge the rail in any way. The knob also does not bug me. The weight? Hardly noticed it. I guess if I was still carrying a rifle all day, 5 or so ounces might matter to me, but I'm not. Funny thing is, I hear people mention weight as a factor, yet some of those same folks have heavy quad rails, rail covers, vertical grips, lights, lasers, and who knows what else hanging off the front of their rifle. Different strokes I guess.
One advantage of the Pro over the H1/T1 - the flip covers. I can easily work them with one finger while ADS. Even better, I don't need to open them at all. With the rear transparent, I am on target immediately when aiming with both eyes open. Very cool. You give all of that up with an H1/T1...but I suppose you can also just leave your covers off.