My two cents...
I buy what I like, with absolutely no intention of ever reselling. I buy for the fun of collecting. With the understanding that I'm just spending for fun, if the time comes taht I ever do need to sell, anything gained, whether above or below purchase price, is a nice surprise. I just put myself into that mentality. If my wife sells my collection someday when I pass away, and all of my Federal 52s, Ornates, and Aurums have become modern-day JNuggs, at $500/deck, cool. If they sell for $5 a deck, then it's something.
I call it the Boat Principle. I bought my boat with the mindset that it's a chunk of money spent just to have fun with family and friends. Unless i sell it within a few years, I will lost the vast majority of my initial investment, not to mention the cost of running it in the meantime. With that in mind, the expense for it, and the expenses to run it, don't bother me a bit. I have friends that are frustrated that they don't appreciate like a house, and they are refusing to sell for a normal loss.
The moral of the story is that it's all about mindset. If you buy cards, expecting them to make you a lot of money in the future, odds are that you are going to get burned. If you set a more realistic goal of enjoying the hobby first and foremost, and if you happen to break even, or make a buck or two in the long run, then it's found money, and you've come out ahead, but don't start your collection with the thinking that you'll retire on your collection's worth.
I buy LE decks because I like the challenge of acquiring something that has a bit more rarity. It's fun, and they are valuable to me, in my mind, for my enjoyment. No appreciation of value is ever anticipated. If you're a collector, you're in it for fun. If you're an investor, you're not really a collector.