Flying to Atlanta next year, due to TSA regulations I'll have a mix of gear that I'll want to carry on with me (my pack with most of my stuff) and items which are only permitted in checked baggage (trekking poles, pocket knife, olive oil, lighter, & c.). What sort of checked bag should I get? I'm thinking the cheapest nylon duffel I can find, which I would leave in the first hiker box I come to. Is there some reason to opt for sturdier luggage?