Some random thoughts that I"m having a hard time tying together:
*I'd have a lot more respect for courses with mandatory cart policies that said "we're doing it because we want more money." Pace of play, or "the course isn't walkable" excuses are bullshit.
*I both walk and ride, but more the former than the latter. But I'm also more of a "go with the flow" type, so if my group wants to ride, I'm not going to put up a big fuss about it. And there are plenty of time I'm not disappointed when they choose to ride. I'm not proud of it. Also, after walking 36, its nice to have carts around to go back out have some late afternoon fun.
*I played in a group that used to walk Cog #4 all the time, even though carts were included in the very high fee.
*Are there any great courses that have been designed almost specifically for cart-ball? I'm trying to think of courses that wouldn't have been built but for the existence of golf carts. The courses at whatever they're now calling Industry Hills strike me as those type of courses, but A) they're walkable (we played high school events there), and B) They aren't any good. I suppose an exception can be made for courses where you may need to be ferried to the first tee or from the last tee. I know plenty of people that walk Greywalls, but it's hike to get to the first tee from the clubhouse.
*For me, in terms of effort expended, walking with a caddie is much close to riding than it is to dragging. I don't find walking with a caddie to be particularly taxing, but dragging is a completely different story. Not saying that from a calories burned perspective, just from a way I feel perspective. That said, I've also caddied for someone in a 36 hole event, and was more tired after that than I've been after playing and dragging for 36. Almost like the physical fatigue was worse because there was no mental fatigue to balance it out.
*Taking the approach that walking is the only way to really enjoy golf strikes me a "no true Scotsmen" position. There are lots of ways to enjoy golf. I enjoy bring first out, walking the course in two and a half hours, and having no one around. I also enjoy loading a 12 pack in a cooler with some buddies and heading out to mess around a bit.
*For some of the reasons discussed above, I don't think I'd like it if my club was walking only. And there are some members that wouldn't be there if that was the case, which would be a shame. I would like to see less riding, and too many carts could have the potential to have a really negative impact on our turf, but so far I haven't noticed that.
*The best time I've ever had on a golf course was one of the last rounds I played with my dad at the par 3 course in Arcadia, CA where he taught me the game. He had to take a cart. I would have missed that experience otherwise.