You should inform yourself a bit more about Algorythm of coins before u buy something that will u only cost money.
Antminer S3 mines the SHA256 Algo.
MUE is qubit Quark and will switch to X11 Algo.
And i also think u dont have a low ROI with CPU mining MUE.
Fixed that

ANd yes, no sense in cpu mining, it isn't worth it other than for the learning experience.
Thank you fellas, you're definitely helping to increase my knowledge on this subject.
So essentially if I do research on how to mine Quark it will lead me down the right path for MUE?
Yes, and the title of this thread is now misleading. Quark used to be a CPU mineable coin, but is now pretty much asic/fpg mineable only.
Monetary Unit is moving to X11, if you would like to research how mining works, focus on X11 instead. Both require asics at this point.