Should Neg… constants be removed?

[anzdaddy]

Go has a math.MaxFloat64 but no math.NegativeFloat64 because it's trivial to write -math.MaxFloat64. Should the decimal library similarly avoid defining negative versions of a bunch of constants?

The main counterargument is that decimal.Max64().Neg() isn't quite as neat and it requires a computation on each use, whereas defining as a constant means it can be computed once at program initialisation time.