For the SCM/Minimax machines, if you order the "more readily available bundles" that tend to be stocked from the factory here in the US, the SC-3C is the "better buy" once you consider accessories...like the short miter fence which I would not be without. The SC-2C doesn't come with many accessories in the "stocked" configuration while the SC-3C comes "loaded. Sam Blasco tipped me off on this a couple of months ago. I'll be ordering an SC-3C to replace the larger slider I have now once my new shop is built. (sold the larger S315WS so I didn't have to pay to store it for as much as a year...)
BTW, you can use your existing 5/8" arbor blades on the SC-2C and SC-3C machines, although upgrading to 12" blades when you wear the 10" blades out is a good move.
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The most expensive tool is the one you buy "cheaply" and often...