Birthday party celebrations can be of two types - 1) One where you spend a lot of money, and 2) One where you do not need to. 50th Birthday Party Decorations essentially fall in the second category, though you could still spend some money if you want. Assuming you are in your retirement years, every dime you save is a dime earned. Keeping that in mind, surely you would want to keep your birthday party celebrations rather low-key and low-budget at most times.