The '100' model was Craftsman's nicest bench/contractor type saw. Don't let the design fool you - saws a lot more crude were used to build whole houses. And from an engineering standpoint, the concept of trunions mounting to the underside of the table vs the tabs of a sheet metal cabinet (as is the case in many a floor saw) may even be technically superior, as they are typically ground surfaces.
Design details aside, those are nice saws. Check electrical for any cracked, crumbling, or fraying wires. Assuming you put new bearings in the arbor/motor, and true the arbor, you'll have a very fine running and accurately cutting tool. They have a good reputation. There is a reason why it is still around 60 years later, and that is actually pretty young in the grand 'vintage tool' scheme.
As far as value goes...very difficult question. I've seen these saws offered for free all the way up to $300. I lament the deflationary prices on vintage machinery, but it is the nature of our disposable society combined with the lack of woodworking interest that keep the demand for these tools quite low and inversely, due to their durability, their supply relatively high.
Unfortunately, the only thing you would ever get out of a restoration is enjoyment of time and satisfaction at the end product, but hardly ever recoup the monetary investments, unless the initial purchase priced was pennies. If you have the space and the time, I'd encourage you to spend some time with the saw and use it. You might just find you really enjoy a solid, well-crafted vintage American made tool and find yourself craving more

I got my start in vintage machinery with a very similar early 1960s Craftsman bench saw and haven't looked back.
Regarding power, I agree, some of your bigger tools might be better for stuffing 8/4 hardwood through, but set it up with a nice 1.5-2hp (vintage) motor, thin kerf blade...it's performance may be surprising. Part of the charm of these old tools is their size, their image, and what they represent in that of an wonderful era long gone.