Teams could not make an effort to acquire him because he was under contract; unless you're thinking trades, but nobody was going to trade for someone that was potentially going to be on the open market. His agent put out feelers in case he was cut and got responses, but in the end he renegotiated to stay here due to several factors. If you think money is the only piece to determining these decisions you are mistaken. Family, relationships with players and staff, the current offer on the table, potential future earnings, time until the next contract, etc., all play into whether a move is worth it for the other hypothetical contracts.
The renegotiated contract was in the ballpark of other potential options, but on the lower end. Other factors made that deficit on this contract opportunity worth it.