Depending on what you have as of now amassed, it sounds as if you already have a collection, if what you claim be true.
Collections are just that. Be advised you are better to save that money, as you likely have your daily carry needs satisfied. Surely, such as Pacific Garden Mission, or World Vision, there are causes to give. It is fairly reasonable that you have debts or bills also.
Perhaps you should decide if there are particular knives you desire, or if you merely want an eclectic horde of pointy, sharp, serreated, ground things.
There has been more than once I traded off or sold or simply gave away all but my user blades, and defensive knives. Some I ruined by a trip (it was just an Anza, and not a rare one) in the washer, something to be avoided. It is also prudent to read the laws of whatever locale wherein you reside. There are blades, like a balisong or push dagger (ah, ma cherie) strongly legislated. The carry of knives is in addition legislated; do not go to jail, be fined, or have confiscated an illegal knife, or carry it in a prohibited manner or location. Generally, in states in America where the Gun Control Act applies, the knife of whatever variety falls under that jurisdiction.