In Barcelona, Suarez is not the King. If he comes back to Anfield, he will be. Financial climate is not so good in Spain while a lucrative TV contract will start from next season in England.
If we can offer a lucrative contract, say 50% higher than Barca., to Suarez. Then it will be very attractive for a player who is already 30. If he can help us to bring the title back to Anfield (likely), everything is worthy.