This thread reminded me of an ex-co-worker who had one or two new water bottles every week. Every week was a different one. She sat 2 desks away, direct line of sight.
Me: Hey! You have some nice water bottles, I noticed that you have a different one every week, sometimes I see two or 3 on your desk. Are they running away from you? Or is someone here "borrowing" them?
Her: Oh no! I love buying these from CVS/Walgreens/etc. I love the designs, they cost only $10-15 each.
Me: Hope you use coupons. (I know she's a coupon clipper.)
Her: Oh these are never on sale or no coupons. But they're cheap. And these are mine. My husband has his, you know he needs bigger ones for his delivery job.
Me: So like $100 a month on bottles?
Her: Yeah. It's worth it. It's my only vice.
Meanwhile, I'd get tons of shit for my 8 year old daily use Nalgene "Made In America" "BPA free" 1L bottle that's been to Machu Picchu, East Africa, UK, Yosemite, King's Canyon, Sequoia, Adirondacks, beaches, picnics, gotten the shit beaten and still going strong, if the cap wears out the company mails you a free replacement. And I bought it used at Eastern Mountain Sports. One guy called it a hospital piss bottle. I told them my oldie fits in with my 11 year old Honda Accord.