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If you think of investing rather than buying objects like an iPhone, for me it is good speculation and it must be done, investment in the long term in the crypto market, if patient to wait can buy more than one iPhone in the future, so I think that's a stepgood to do.
Investment culture is a culture to produce wealth in the future, meaning that if you think of doing so you have a good mind for yourself Alone and your future, there are many people who have succeeded in investing in the Crypto market, they can buy what they want.
Instead of spending all your money on expensive stuff - it's definitely better to invest. But sometimes you need to enjoy the fruits of your labor and not have to listen to other people's opinions completely if whatever you buy can support your big plans in the long run - I think it would be just as good.
You don't have to hold yourself back from buying a new motorbike or car when you can afford it with some of your money - but don't spend it all just to fulfill your lifestyle. Buying an iPhone will usually be considered a waste if it is to support your lifestyle - but if the iPhone you buy is useful for you in developing yourself - then ignore what people say.