mhiscox
Expedition Leader
Pretty good math, and no one would argue that the WAG bags aren't pricey, but for campers in the boonies, it's not quite as bad as your prediction, since you only pee into the bag to provide the liquid necessary to gel the poop. Number Ones by themselves don't require the bag and, indeed, you wouldn't want to waste the bag space. (Peeing 200+ feet from a water source/campsite/trail is considered a non-issue.) Also to take into consideration is that, depending on financial motivation or a higher tolerance of grossness, you can use the bag multiple times--the bag is good for up to 32 ounces of waste.Although, say 2 people deuce twice a day but can get one each into a public toilet most days while some days you're either in a hotel or walking around a village or town all day so no van dumps while some days you're at the beach or camped in the mountains so 100% van dumps...okay that gets complicated...say in a year abroad you average 1/3 of your dumps in the portable toilet/bucket/etc. That's 365 x 2 poops a day x 2 people = 1,460/3 = 487 anticipated bowel movements to be captured by whatever portable receptacle you choose plus say you both pee in the middle of the night at least once per night and again whiz in the bucket at least once per day (WAY less than that for me but she's a bit prissy and small-bladdered) so that's 365 x 2 pees a day x 2 people = 1,460 so you have 487 poops plus 1,460 pees that's 1,947 uses I'd expect my toilet/bucket/etc to see in a year abroad.
The Pack It Out movement is gathering momentum as the extent of the pollution and general nastiness has become a serious problem, and it started to get so you couldn't did a cathole without hitting another cathole at popular sites. There's also a growing sense that having individuals handle small amounts is better than having the NPS/NFS/BLM use everything from mules to helicopters to fetch it for them. Anyway, as the sign says, "If you're tough enough to climb Mt. Whitney, you're tough enough to pack out your poop."
If you're interested in a pretty comprehensive look at backcountry waste management details and strategies, check this link: http://www.trailspace.com/articles/backcountry-waste-disposal.html.