At this point, yes, I would hang onto them if I were you and I could afford to drop $1000 into them. They'll likely pay you back 5 fold in a year or so.
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
President, IBNS Ontario Chapter.
Treasurer, Waterloo Coin Society.
Show Chair, Cambridge Coin Show.
Fellow of the Ontario Numismatic Association.