did a great job of summarizing the drawbacks of owning a jobsite saw. I had a Bosch REAXX, almost identical to the Bosch 4100-09 and the current 4100-10. In case anyone cares, the difference between the 4100-09 and 4100-10 is that the -10 has a lighter weight gravity rise stand. The 4100 saws are identical.
To his jobsite saw drawbacks, I would add:
* Aluminum top.
You can't use magnetic accessories with it. It is easily scratched or dented, and not as smooth as a cast iron top. Waxing the top helps reduce friction for smoother cuts. (Johnson's Paste Wax is popular.)
* Miter slot distance to blade.
For reasons that I cannot figure out, the left miter slot on some jobsite saws is farther from the blade than cast iron table saws. Assuming the miter slot on your jobsite saw is the standard size, most miter-slot based accessories will work fine on a jobsite saw, but a few may not work. I suspect it is because the manufacturers do not test their accessories on jobsite saws.
I discovered this issue with Rockler's thin rip jig. It was about ~3/8 inch short on my Bosch REAXX. I know that the same issue exists for the older SawStop jobsite saw, too. I do not know about other saws, but would not be surprised if the Bosch 4100 and maybe the new SawStop Jobsite Pro have the same issue.
In addition, I would like to add these comments:
Lead-in distance - Already mentioned by woodnthings. This was the biggest drawback for me with the jobsite saw. It made it much harder to line up larger pieces of wood for rip cuts. Infeed support and extending the rip fence with a long auxiliary fence would help. The new SawStop Jobsite Pro saw is longer by 2 inches, and that would have been better for me. Having said that, it is still less than the lead-in distance of most cast iron table saws.
Jobsite saw stands - I really like the "gravity" stands used by Bosch, SawStop, Delta, and others. The saw's own weight helps you open and fold it in a very clever way. They are easy to roll and maneuver around. My small spouse had no problems moving it when she needed access to a cabinet.
In contrast, the DeWalt looks more challenging with its folding leg style stand. Am I right in assuming that you must lift the saw to unfold the legs under it? (One side at a time, right?)
Jobsite saw market - I think we may be seeing the start of a market trend, where manufacturers are targeting two different markets for jobsite saws:
* Construction Trades - This is the traditional use. Low end jobsite saws replaced the larger, heavier contractor's saws for many construction workers.
* Homeowners and Woodworkers with small shops - Many woodworkers are aging, and they are downsizing their shops. They still want a quality table saw for fine woodworking, but don't have the space. People are discovering the make-it-yourself trend, but they are not ready for a full size table saw. I think that is the market for the SawStop Jobsite Pro.