If everyone lived like the OP would the economy still work? Maybe the economy would shift. I only buy second hand cars because I hate paying too much depreciat

If everyone lived like the OP would the economy still work? Maybe the economy would shift. I only buy second hand cars because I hate paying too much depreciation but someone, somewhere is buying the new ones, which I can then take advantage of. I try and live as frugally as possible but my idea of frugality is probably way different to everyone elses, as is his.