The eternal dilemma between buying a new stuff and buying used stuff is tormenting people all over the world from the beginning of trade. There is one percent of human population which is not concerned with this question. Like Jarvis Cocker said, they will never do what common people do and they will never fail like common people. But here, we are talking about common people. The math of buying is pretty simple. If you want to save some money, get used things. You can easily save more than half a price buying used cars, books, tools, etc. However, there are things you should never buy second-hand, even if price is very tempting.
After a period of time, every pair of shoes, more or less, modifies to get the shape of your foot. What are the odds to find an identical pair of twins for your feet? The chances are the same as to get hit by lightning twice in one day or to win grand lottery ticket. Problems with wearing used shoes can go from discomfort, blisters, ankle injury to foot infection or back problems. Buying used shoes is particularly problematic with kids because their feet are changing rapidly. If you think that you’ve saved some bucks buying old shoes, wait for the bill from your physician.
If you have really strong stomach then you should consider buying a used one. Just imagine what that old mattresses have gone through and how you’ll sleep with someone else’s mites, bodily fluids, and dead skin cells. Not to mention the bed bugs. They feed on human blood while whistling the “food around the corner” tune and they can leave pretty itchy bite marks on your skin. Be wise and always buy new mattresses. Sleep tight and don’t let the used mattresses’ bugs bite.
Here we are talking about mobile devices, not desktop computers. There is a greater chance of damage by banging, scratching, dropping or spilling on something with laptop than desktop computers, since they are always at the same place. You cannot know how the previous owner maintained a laptop. It can run smoothly when you try it, and simply stop when you get home due to some hardware malfunction.
Child car seats
According to statistics there are more than half a million used child car seats bought last year in the United Kingdom. That means that more than a million parents puts their kids to risk. Maybe used car seats don’t meet the current safety standards or the instructions for installing are missing. There can be small, non-visible cracks or some other damage. This kind of stuff you should always buy new and so avoid putting your child’s life to risk by trusting a stranger.
Similar to child car seats, helmet’s main purpose is to protect your head from one and only one accident. Whether it’s bike helmet, snowboard or motorcycle helmet, always buy new because they are not much expensive, and for literally couple of bucks you are risking your life. Replace your helmet after a single crash, even a very small one and even if it looks undamaged. You can never be 100 % sure that helmet is faultless after an incident.