The same 10.000 Euro per home match are required for laola1.tv live streaming in CL group phase already for many years. Than add up the costs for referees' traveling and hosting, and don't forget the special CL carpet to play on (30 to 50 thousand Euro per season).
Sorry, I forgot the entrance fee for CL participation, around 20.000 Euro, if I remember right (WoV reported it some months ago). And I'm not sure, if I have all costs listed... generally speaking, the teams expect 100.000 to 200.000 Euro additional costs when participating in CL compared to CEV cup. No mercy.