How to describe persons who care about cost-effectiveness?

How can I describe in a single word or two words a person who is sensitive in cost-effective stuff or products? Or persons who care the most for cost-effective stuff?


Solution 1:

You can describe such a person as being economical:

1 : marked by careful, efficient, and prudent use of resources : thrifty
// an economical shopper

(source: Merriam-Webster)

'resources' here includes money which is available to spend.

Solution 2:

You could also use the word skinflint.