It used cost x100 times that much back in the days... With cards and all, and it only did SD. Still a fraction of what an Avid would cost, for a very high quality, and it crashed less.
I labored on this marvel of technology for a few years in the 90's At some point the switch to FCP was made. The two co-existed for some time, and then HD came along and M100 was abandoned. FCP was more fluid in daily use, so even if M100 had survived the HD shockwave, there was no coming back.
I think I once downloaded the software only version after the acquisition by Boris Effects, I had to re-open an old project, and it did that just fine if I remember right.
Now M100 is revamped to deal with resolutions up to 4K, Aja cards are supported for I/O, 60 days trial available. The UI looks just like the same old though, and it looks like it still has all the same convoluted ways of doing things. Talk about back in the future!
I'm not sure I would recommend it to anybody, but for the curious among us, here it is:
http://www.media100.com
Scrolling down that page, I also found a Boris Continuum Image Restoration Promo ($99 instead of $299) good until June 30, 2015 "MacVideo Promo".
http://www.macvideopromo.com/products/boris-continuum-image-restoration-unit-for-mac-or-win
Update:
Actually Toolfarm has a similar Promo, good until end of Sept 2015. Toolfarm Exclusive Promo - July 1 - Sept. 30, 2015
http://www.toolfarm.com/buy/boris_continuum_unit_image_restoration