The prize funds in all competitions essentially go to the nation's FA* to be split between the teams in those tournaments. If the Huns had made the champions league they'd have got half (or maybe less than half for not being the automatic qualifier - I assume there must be some form of inherent bias added in for the biggest teams as always) of that tournament's pot. Now that the Huns are in Europa, it's probably more lucrative for us to be in the conference despite its lesser pot (assuming hearts don't turn their game around, and villa don't die prior to their game). I expect Dave has picked himself in the lineup tonight just to be sure.
*I have always assumed that it goes to the FA, which would make sense given the split. The goal should be for that unearned money to be intercepted at that point and be evenly distributed amongst the clubs.