My $100 investment into getting the clicgear has saved me a lot of money over the past few years. Probably 250 rounds played, walked maybe 150 of them, so 150 X $15 (on average) = $2,250. That's a good piece of coin, at least for me.
I don't even see how carrying vs pushing could be an argument. Both are 10 times better than riding. Besides that, it's all about preference. I would never consider carrying, bc of my back issues (I am 29 years old, tall, always had lower back issues). I mostly see a lot of people that played since very early age carrying, since you are pretty much forced to carry in high school (from what I've heard/seen).