Hmm, DFS might have Vin & Sprit for $10 a bot or less wor.
Can we make them to sell it to us for $10?
Economics 101. Sellers sell at the price that the buyers are
willing and able to pay. Has nothing to do with cost price at
all.
You are free to sell it for $31 if you wish but you will only
shortchange yourself. Take a look around on other forums. 80 SGD is
the median price.
