Would a Dewalt DWE7480 be a better saw? Of course, I would have to build a stand for it!
The DW will basically have the same limitations as the R4513...they're both the same type of saw - portable jobsite saws. They're small, light, have limited operating space in front of the blade, and are made of plastics and aluminum. Their strength is the ability to easily move from site to site, but are not ideal for sheetgoods and fine furniture. Is price driving the consideration for a jobsite saw or is portability?
Check out the difference in table space, especially the landing area from the front edge of the table to the blade, which is the amount of space you have to get a board or a sheet of plywood settled, level with the table, flush to the fence, and ready to cut before it contacts the blade. There's also the concern of having a very light table saw move while trying to adjust the load...as a beginner, these are things I would have never contemplated, but are the real world drawbacks of a small saw. Adding a workstation around a portable ends up taking up nearly as much space, if not more, than a stationary saw, so by then you have a larger area but have given up the advantages of the quieter induction motor and torque, as well as the wearability and larger landing area of the cast iron surface (plus the limitations of upgrades, feasibility of repair, accessories, etc - read the link
I posted earlier if you want to understand the differences). The advantages of the stationary saw are significant, and are worth some consideration IMO if there's any way to fit it in. Sometimes a portable is simply more feasible, but the actual square footage of the footprints really isn't all that great in terms of real estate that gets consumed, but can make a huge difference for many woodworking tasks.