I am dumbfounded by the reasoning here. So if I do not buy any bike at all, I save all the money?? If I go out and by some department store bike for $150, I save most money? Is it about buying a bike that looks like Brompton, but paying less than for a Brompton? Is this supposed to be a good deal??
As to buying on AliExpress in another post, depending on your purchasing pattern, it can be the most expensive portal around to buy on. The issue is of practically nonexistent protection for the buyer. By now I made about 100 purchases on AliExpress, so I am knowledgeable about the subject. There is a far higher percentage of incompetent and unscrupulous sellers than elsewhere and far greater percentage of marginal products. If you are unhappy with your purchase, you in practice lost all your money or most of it. The portal is good for buying low-value items, so you do not care if you lose your money, or for products of established quality from vendors who represent the manufacturers. With everything else, you need to be in a better financial situation than most, so you do not care, else it can be financially suicidal.