Replying To [Merlion]:
Hi Merlion.
It is quite a legitimate question, and you should really treat it as such.
A lot of manufacturers pay different prices for raw materials, depending on the quantity they purchase. This is one reason why this supplier kept asking you.
If you only want, say 5,000 pieces, the manufacturer pays $xx for the raw materials to make these 5,000 products. If you want 50,000, then he can get the raw materials at a slightly cheaper price as he is buying larger quantity of raw materials at the same time.
Besides that, if he ships a 40'HQ, the freight will be different than if he only ships an LCL of 5,000, in which case he has to pay $x per cubic meter in a LCL container.
Whenever I am asked for a quote, I always ask the customer what quantity he wants me to quote on.