[joe-user]

I've worked at plenty of places with free snacks/drinks (some even considered enterprise), but never a place that had ping pong tables or relaxation pods, so casually introducing those to the argument is a tough sell and changes the context enough so that I don't think the rest of your point still stands. What are your thoughts on a more fitting comparison, such as snacks/drinks provided vs. BYO/vending machine/go to the store?

[sacado2]

Not OP but I'd say it's the shortest path to obesity, unless you have a very strong will.

I never buy anything at the automated machines at my workplace, but when my colleagues bring some food for others to share, I always take some, for instance.

[SECProto]

Depending what's available. At my job, if I forget my lunch, my only option is driving to a fast-food joint. If my employer offered snacks (some healthy, some not), I'd likely end up healthier. It's situational, depends on the person and workplace. Willpower is only a small part of it (at least for me).