If you bought Tesla Motors, you would be up 150%.
Then you can be freed of the phony concept that your camera has any "investment" value, and generate the cash to pay for your cameras.
And if you had the enterprise to use your camera to make some money, all this would be irrelevant. It's not tough. Walk into any business with a professional-quality print of the front of their business and suggest they buy it for their Yelp listing. Offer it digitally on the spot on a cheap thumb drive. You could even market by email with watermarked images. If one out of 10 say yes, you'll no longer worry about what your gear costs.