I don’t care how anyone spends their money. I’ve had experience with expensive cues warping as well as cheap cues.There’s an old adage, “You get what you pay for”. It became a known adage for a reason. “Playability” is subjective, to each individual it means something different. Quality is not subjective, and top quality handcrafted cues, almost all of them will stay straight and play well and last you for a lifetime where a $300-500 cue won’t. Your mileage may vary.
I’ve got a handful of 20-30 year old cues, including shitty house cues and cheap Chinese shit that stills rolls straight.
In my experience cost isn’t nearly the determining factor in longevity as much as how you store and care for your property.