A CNC router with a work area suitable for typical woodworking projects is definitely not $300 - you're probably thinking about 3018 kits, but with 18 cm of travel, that's really not enough for the usual scale of woodworking projects. Not even enough for a typical cutting board.
A ready-made unit in "woodworking" size will likely set you back $2-$4k.
A ready-made unit in "woodworking" size will likely set you back $2-$4k.