there just isn't anyone willing to sell them. Here is a little tip you can do.. look at the cup competition and click on all the teams.. are they of higher level than you? For example, i play with 3 teams, all of them on the same server, levels 2,6 and 8. Level 8 team is on the highest level of the server so I see one old 5* player per day that everyone goes crazy for. Very frustrating for everyone on level 8 but nice for level 2.. And to go back to that cup experiment i mentioned.. when I look at the cup competition with my level 8 team, there are only teams at level 7 and 8; there is no one on my server higher than level 8 and no one wants to sell 5* players on a server where you cant replace them..