[barrkel]

I'm trying to say that customers aren't quite stupid enough to invest in a display that they'll throw out 18 months later.

[roc]

In a product line-up where a new GPU requires an entire new machine, merely having to replace a display would actually be an improvement.

Not that people with those sorts of interests, even when Apple customers, rely on Apple hardware to serve those interests.

[sneak]

As long as it can be used with a pass-through Thunderbolt mode, it would still be perfectly usable as a display/port expander without using the internal GPU, should you buy a faster machine.

Also, Apple stuff seems to last damn near forever, so it'll hold a lot of resale value (even if the GPU is two years old) for those who want to upgrade.