A:I got a new book to read.
Coolioes was used here because the event isn't very exciting.
A:I got a new game!
Cool was used here because the event was exciting enough.
Using "coolioes" in a sarcastic way
A:I got a new yak
This is why we don't use coolioes in a sarcastic way, because when you say it sarcastically it sounds like a fat bird.