For me Sony broke into the industry and has remained strong due to games first. The only time I felt they left that thinking was first half of PS3 when they struggled. Sony tends to do evolutions based on what makes sense at the time. CDs in 1990s were the next technology, others used them, it was just baffling Nintendo didn't. DVDs were the natural next step. They may have jumped the gun a little bit with blu-ray, might explain why they held off on 4K UHD this generation.
When you buy a PlayStation home console you get a large and deep library of titles explaining its broad appeal across regions in the world. Sony, in general, gets vast majority of third party titles as well as having strong stable of first party. That has built a level of trust that it is a quality brand over 20+ years.
