I put most decks into bags of my own making, even nice boxes are more suspectible to wear and tear than a bag. I carry my deck-of-the-week with me, and I find a bag more practical than a box, softer and hm, I prefer bags.
A deck that comes without a box is great, then I know that I really pay for the deck and not the packaging. I make my own bag anyway
Elaborate packaging is great and it feels luxurious when you open it, but the main player is still the deck itself, and after the unboxing ceremony, the question is what are you left with. Even the very nice boxes of Housewife, Orbifold, Golden and Touchstone tarot are stored away since they're too bulky to carry around... but I know others really love wonderful boxes.
I guess this is a very very personal preference and you'll get votes for both options. Yeah, I'm being super helpful today ;-)