[big_maybe]

People commonly use this expression in everyday conversation, such as, "you could save 10 times as much if you would just shop at Costco." So I agree with OP, their comment is correct but pedantic.

[happymellon]

> People commonly

Your example them was a weasel worded advert that uses meaningless terminology to make something sound big (savings in this case).

People don't use that expression.