[rjh29]

You're also locked into their ecosystem for repairs, accessories etc. all of which are more expensive than anywhere else.

[opan]

What kind of accessories? You can use cheap generic USB-C docks/hubs, depending on your needs. (macOS doesn't support DP MST so depending on # of screens you want to attach, you may need a more expensive dock, though it still doesn't have to be Apple-specific).