Actually, a good idea for MOL, provided he can pull it off.
It is generally called....revenue enhancement, IE: offer a slightly premimum product for those that are willing to pay the price.
On a much larger scale of course, there is one quite noteable airline in SE Asia that has made this idea work for many years...SQ.
The SQ chairman at the time, JYM Pillay, started the ball rolling, and it paid off big time.