It is very funny to see how miners react to decreasing block reward. Many just leave, so diff drops. Then new miners join, diff again up...then block reward drops...some go away again. :-) So as a result, I'm constantly mining 300MNR every 24 hours no matter what is the block reward hehe. I wonder what the diff will be when block drops to 50MNR if by then we don't get listed on some exchange and the price skyrockets so everybody will want to mine few MNR's. :-)  I hope one day 1MNR = 1LAMBO haha.