It all depends on what you want to do with your layout. If you want to do a lot of switching, all the time, then a point-to-point will satisfy you. OTOH, as bnsf971 said, you can work a layout with continuous loops as point-to-point, while having the ability to do continuous running if, for example, you have guest, especially younger kids who just want to see a train run.
My own layout is a "folded dogbone", but with two major yards, that can provide plenty of action...when I so desire. OTOH, my Zephyr passenger trains can run continuosly from one main city to the other, which I usually prefer.
Best wishes in your quest.