Money-savers focus attention -- and eyes -- on the prize. Why can some people patiently save for the future, while others opt for fewer dollars now? A new study reaches some surprising conclusions. Saving takes patience -- forgoing instant rewards for larger, delayed rewards. Yet 'patient savers' don't slowly weigh options and aren't necessarily better at resisting temptation. Instead, choosing between less money now or more later, savers focus on the dollar amounts, quickly ruling out other factors -- as their eye movements reveal. Source 9f.
It really just depends on the situation, by default I like to save because you never know when you'll end up with less income or occur more expenditure. Unless I occur something that seems valuable to me and I won't be able to get it next time.