MCC media are not so costly. You can see many evidences of the low quality of most of media surfing all thread dedicated to scans.
The main issue of cheap media is that they degrade very fast in time. If you want to save your money, it is better to buy good quality discs because if you buy cheap discs, after 6 months in worst cases you are forced to burn again the same disc because it become hard to read or unreadable at all.
So, cheap discs have a lower price, but if you must burn again the same discs two or three times in a year, actually final costs are higher than buying a quality media from the beginning. A good quality disc will remain readable for a minimum of 2-3 years (even more if you store correctly your discs)
Another factor you must consider is that if you burn the same disc 2-3 times per year, also your burner will degrade faster, so if you burn a lot of media there is also the possibility that you will be forced to buy also new burners more often.
In conclusion, cheap media are not so cheap if you consider them in the long term.