Considering the price of most router plates (the Harbor Freight plate is an exception here), The Rockler tables are a good, quick-start alternative for general work. I bought their table top (top only, with fence) a few years back, and was pleased.
But, making your own is relatively simple, and allows you to design it as you want. A few months ago, for example, I decided I wanted a heavier-duty router, and a lift. I went with the Rockler BenchDog Pro lift and a PC 7518 router, but made my own top for them.