Congratz!!!!
Its a personal preference whether to keep your JMan card or not.
Most everyone I know has kept it, just in case their company folds and then they can go back to work for someone else as a JMan.
Not to sure how other companys feel about hiring a Master now adays, but in past they wouldn't accept it.
I will keep my JMan card as the cost is not high.
I havent had a chance to look over Gov Ritters new bill regarding new competency testing for 2011....that may change things.