Now you don't have to slum it in an economy class seat. You're now able to afford a real laptop. You can treat yourself to...
Near enough everyone does it. If you've ever thought "I'm going to buy the brand-name [pasta|batteries|phone|insurance]" you're susceptible too.
The thing is, it's not much fun living as though you were poor - cutting coupons, spending time working out which vegetable gives you the most nutrition per Kg, scrimping and saving. So for every extra $£€ you make, you can give yourself a short-term dopamine hit at the expense of long-term planning.
It's one of the reasons why, in the UK, we're moving to mandatory pension provision. Unless you take action, a fixed percentage of your wage will be placed into a pension scheme. As your wage rises, so will your long term savings.