That's a tad pedantic. They add the . so people immediately know its not $29, and that it's a low number. No one sells things for decimals of a penny. I think t

That's a tad pedantic. They add the . so people immediately know its not $29, and that it's a low number. No one sells things for decimals of a penny. I think they gain more legibility than they lose on average by writing it that way.