Thanks Don,
I've thought about making a wind-resistant playing area, and I've come up with several similar ideas, but nothing I think of seems to be portable enough for my needs. I like to keep cards in my car so I can play them anywhere--outdoor coffee shops, picnic lunches with the family, that sort of thing. Also, I've thought about using phone apps to play certain games, but I don't enjoy it quite as much. Yeah, I know, that's a little bit picky, but it's the truth. I just like physical cards better than digital ones.
As far as scratching and marking goes, I'm really not very concerned for their condition--as long as they're still usable for real play. I've got plenty of opportunities to keep other decks in perfect condition, so I don't mind having one deck that I let get scuffed up as long as I can continue to use it regularly.
And about the expense: I have seen some old kickstarter ads for things like the Steel Bear and the Bronze Staghorn decks, so I know they can be expensive, but I know there are other similar options that are a bit less costly. Additionally, I don't mind paying a moderate price for a marked deck if someone is trying to get rid of one. After all, I'm sure there are lots of collectors that would rather sell off a marked all-steel deck at a discount so they can have the funds to buy a few of the brand new decks they've been eyeing. I'll be on the lookout for a good deal