Even if you can afford it, from an over consumption perspective it's great to be conscious of what you are buying and if it is something you actually need/want.

I'm the sort to over research everything I want to buy. A lot of the time, it convinces me I'm fine with what I have. Others, it makes me confident that I am getting the best value for what I am purchasing. There's really no downside to waiting a few weeks to decide on a purchase.