In some cases, it is true.... but not others.
I still use a Yahama electronic piano from the 90s because the technology hasn't really improved much more from then. If i were a professional musician, i might say otherwise.... but for my needs, it is more than good enough.
That will happen with imagery too.... Unless you absolutely have to have the newest and best to survive in the professional environment and get that, say, 5% better end product... You will be just fine with that 2nd hand Sony F55 or Alexa.
We are reaching a point of diminishing returns