We all have things that we are willing to drop money on that someone else just couldn't even imagine doing.
With the cost of shipping, it makes sense to order several at once rather than a few multiple times a year. If I ever get to 365 jerseys, then I will most certainly have to get rid of all of my other clothing. Might have to start getting XXL so I can wear them as a dress since I wouldn't have room to store pants with that amount.