Technology

To the extent you are able to (particularly if trying to stay legal).

So for streaming content, much of that isn't available to 'buy' at all. Even for the stuff you can "buy", technically speaking in many jurisdictions it's not legal to be able to rip your DVD or Blu Rays or remove DRM from a digital download.

For certain software, on-premise editions have been abolished or priced into the stratosphere because they don't want that market to exist anymore. Some of that software has competent alternatives, but sometimes your choice is dictated by your clients and partners, and opting for a less compatible or merely perceived as less compatible option is a non starter. Even among on-premise editions, a lot of software vendors have switched to still having it by subscription as the only legal way to keep using it. Again, maybe for those software you can get away by breaking the law as a workaround, but legally...

This is of course assuming the conversation narrowly applies to software type things. Everyone is also rebranding 'leasing' as 'as a service' and are copying much of the software playbook, for the same reasons, including making purchase of equipment more expensive to steer people toward the 'as a service' revenue strategy.

Then going beyond the 'tech' industry, it's getting really hard to buy a house rather than rent it from some company that has been pouring money into acquiring all the available real estate.