I had Lobato regen into my youth team but I sold him to finance another transfer
You're right in the beginning I managed to snag quality players for cheap. I signed Coman and Renato for like 16M combined in the Championship. I also signed Casemiro and Martial for decent money too. Now I'm getting quoted for outrageous fees. 60M for Verratti, 55M for Dybala, 155M (!!!) for Ronaldinho. I can't even sell to buy for these fees. Literally half to sell half my team to finance even 1
My highest rated player I can get a max 27M for. I got a bid for Salah for that much because of his 20 assists last season (he has 7 in his first 3 already. Beast). One for Inzaghi for 24M and one for Martial for 23 (even though his market price is 14M, he's coming off the back of a 30 goal season and Golden Ball award at the World Cup). The only one I can possibly sell is Inzaghi because he doesn't fit in the team. Even then I'll have like only 30M. I'm trying to mount a title charge but don't have the resources. I'll have to just keep this team and hopefully sneak a title in somewhere. I mean, 3rd place was a superb season after just 1 season back up.
I've been having luck with youth team though. I've had Loboto, Xabi Alonso, Lampard, Drogba and a lot of other decent players I haven't signed regen. I think I'll have to do what you're doing, seems the only way to get some money .