Hi! I do understand your position as it does sometimes feel bad to spend on something and not get the thing you want. I highly recommend to take advantage of the events as there are a lot of good ones to choose from and if there is ever a time where you spend on an event on chance, make sure you like the other stuff offered and not heavily rely on just the lucky aspect. The events that are based on luck gives everyone an equal chance at potentially getting something good, so it is always recommended to know what else you can get if by chance you don't get the rarest thing offered. Take advantage of stackability and rebate =]

~Jib