I dont think its so much the money side - after all if you were to sign a player like eriksen, say, on 8m net wages which is in line with Tottenham were offering anyway, and an 80m fee over 4 years, that's already 144mil so a substantial saving.
I am kind of surprised there isn't more demand for him, tbh. Maybe some of the clubs who could go for him are worried he might not live up to it, big fish small pond syndrome? I guess there's also some FFP issues going - PSG, Barca, Juve have financial difficulties in some shape currently... Man Utd could be a choice but its not a clear step up even if a bigger club.... Real just dont seem that keen on him...