Cash For Gash

Why do former players sell their championship rings and other personal items? Do they need money and can't get it any other way or have they decided that the item has outlived its usefulness?

Former Pats RB Sam Gash is selling his rings from his time with them when they won the 1996 AFC Championship game, but lost to the Packers in the Super Bowl.

Gash left the team after the season and finally won a Super Bowl in 2000 with the Ravens before ending his career with the Bills.