Collect error notes only if you really enjoy them and only if you have no expectation of making a profit on them in the long term.
I would agree that you should collect error notes because you enjoy them, but I strongly disagree that it cannot be an investment that will turn a profit when the time comes to sell them. I can tell you that unequivocally from personal experience.
I have collected Canadian paper money for almost 25 years and during that time I have acquired a large number of error notes. The key to making them an investment vehicle is to understand the uniqueness of each error and acquire those that are visually appealing, as well as, scarce. It takes time and research to truly understand and determine the significance and scarcity of a particular error note.
I have avoided mismatched serial number notes only because of the vast number in the marketplace. I never buy a modern error note until sufficient time has passed to determine the actual number that may exist (e.g. APE/APF mismatched prefix).
Like any investment you need to do your due diligence before making a purchase.
Here is a small sample of some error notes that I acquired over the years, and have either sold or received offers, that significantly exceeded my purchase price.
Sequential pair of 1954 $2 modified cutting/fold errors{http://img815.imageshack.us/img815/5659/19542foldfront.jpg:http://img815.imageshack.us/img815/5659/19542foldfront.th.jpg}
{http://img12.imageshack.us/img12/4636/19542fold2front.jpg:http://img12.imageshack.us/img12/4636/19542fold2front.th.jpg}
GUnc 1954 $5 Modified Inverted Signature Error{http://img843.imageshack.us/img843/3199/19545invsignaturesfront.jpg:http://img843.imageshack.us/img843/3199/19545invsignaturesfront.th.jpg}
1986 $2 cutting/fold error with colour bar and margin notations{http://img690.imageshack.us/img690/5756/19862ebz8837792front.jpg:http://img690.imageshack.us/img690/5756/19862ebz8837792front.th.jpg}
{http://img6.imageshack.us/img6/1662/19862ebz8837792back.jpg:http://img6.imageshack.us/img6/1662/19862ebz8837792back.th.jpg}
Gem Unc 1986 $2 Intaglio Print Error{http://img94.imageshack.us/img94/1985/19862intaglioerrorboth.jpg:http://img94.imageshack.us/img94/1985/19862intaglioerrorboth.th.jpg}
[edit] Hosted the pics and converted them into thumbnails - Wizard1[/edit]
« Last Edit: May 14, 2011, 11:14:27 pm by Wizard1 »
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Arthur Richards
Contributor, Charlton Catalogue of Canadian Government Paper Money, 19th, 20th, 21st, 22nd and 29th Edition
Pricing Panel Member, Charlton Catalogue of Canadian Government Paper Money, 21st Edition 2009