@vco1 - I am coming around to your point of view also. My ScanSnap S1500M, purchased in either 2012 or 2013, is also not supported. This is unacceptable. If this were a cheap, under-$100 scanner, I would understand discontinuing support for new OS versions after a few years. The Fujitsu ScanSnaps, however, are expensive and marketed to professionals. It is not unreasonable to expect support for several OS upgrade cycles.
A technical consideration - apparently the current ScanSnap version (iX500) is not that different from my version, the S1500M. The latest software version available for the S1500M is out of date by several years. As explained in another post, a Fujitsu support representative advised me to install the current Fujitsu software version (v 6.3 L70) designed for the iX500 - it works on my S1500M. I mention this to support the idea that it would not be that difficult for Fujitsu to support the older models.
If I replace my S1500M with the current model iX500, I would be concerned that another replacement might be needed soon. It is my understanding that the iX500 has been on the market already for several years.
Don’t forget that the ScanSnap was plagued with software issues in the last couple of years (see link in this forum: “ScanSnap Online Update” thread.
With these issues in mind, I plan to encourage Katie and David to reconsider running ads for the ScanSnap. Fujitsu does not have a good track record with ScanSnap continuing support on the Mac.
*Edited to add: The “current” version of the ScanSnap, the iX500, was introduced in Jan 2013. Is it going to be obsolete soon?