Longevity of an inkjet canvas is quite important. Typically, longevity defines the time period till when the inkjet canvas print would last without getting deteriorated. Printers of a good repute as well as artists and photographers prefer good quality inkjet canvas that has a very long life. This ensures that their art work does not seem even noticeably deteriorating and is appreciated for years at a stretch. Fine art printers use fine art inkjet canvas prints that last decades.
The longevity of an inkjet canvas definitely influences its value...