Why? I don't see sellers on Alibaba advertising the number of units that they can produce per month. Aliexpress is much more like ebay if you always filtered

Why? I don't see sellers on Alibaba advertising the number of units that they can produce per month. Aliexpress is much more like ebay if you always filtered search with "buy it now" (except that the prices are generally lower and you have to deal with longer lead times). Amazon kills it with breadth of selection and fast delivery times; I haven't seen anything out of China that compares, but the Amazon prices are higher for comparable items.