not worth it. (Unless you use something with zero apr for a long time and decent rewards, you can earn some interest on the 50k...)
1) Sign up for Ally Credit Union.
2) Open up a 3 month CD
3) Wait for it to mature.
4) Renew the CD to 5 years at 1.59% APY, and receive a .25% loyalty bonus, for a total of 1.84% APY.
It's worth it to pay the penalty to withdraw money from a CD prematurely.
Ally has a small, 60 day interest penalty, so that means if you cancel after:
1 year you get a resulting APY of 1.54%
2 years you get a resulting APY of 1.69%
plus the points you can be ahead.