What are your goals? A PM + good dumb trainer is better if you care about riding outdoors, want the full benefit of power training (pacing, exertion tracking), and are willing to ride a dumb trainer consistently (which most people don't like). On the other hand, if you don't care how fast you are, don't race, and just want to keep riding outside when you can and indoors when you can't, the smart trainer would probably "feel" better to ride when you have to.

The thing is, when I got TR in the first place, using VirtualPower from my dumb trainer, I suddenly hated riding outside and not getting all the metrics. (Fortunately, the great power meter price drop started about a year later.) Would that be you?