Many people were interested in the sale, but only a few ended up being takers.

takers 是名词 taker 的复数形式，taker 来自动词 take（拿、取），加上名词后缀 -er 表示"做...的人"。 takers 在这里指"实际购买商品的人"，强调从感兴趣到真正采取购买行动的人。