@chaliwong - The issue is NOT when you use the same bank [since these transactions are same day or real time] but when you have interbank transactions.
I can issue a chq for 1.1mn & you bank it in the SAME bank e.g. a chq on Equity can be banked in Equity even if in excess of 1mn.
For smaller/lesser amounts using RTGS or EFT [2 biz days] is pricey! BTW, I hate EFTs coz some banks charge an INCOMING fee too!
Chqs are here to stay for a few more years. Just like those who thought physical currency will go away. It has not. The % has reduced compared to total money supply but still an integral part of our system!
Greedy when others are fearful. Very fearful when others are greedy - to paraphrase Warren Buffett