As taken from http://www.argyllcms.com/doc/WideGamutColmters.html, “since lower cost Spectrometers are now available, this is the best solution”.
Which exactly is the page referring to when it says “lower cost Spectrometers”? Checking the list from http://argyllcms.com/doc/instruments.html it seems like the cheapest option I could find is the i1 Basic Pro, which is priced at $999 USD. Is this Argyll's idea of “low cost” or am I missing something?