[Aloha]

Allocation of that memory still costs /something/ even if ram is so plentiful as to be free.

[joesb]

Making your own library also costs something, which are probably more scarce than RAM.

[Aloha]

no disagreement - better to use someone elses - but if your using one tiny part of a gigantic library of functions, it may be more cost effective to find a better (smaller) library, or write your own.