We firmly believe that, since animated jetways are a standard FSX feature that works at every default airport, they should be provided as standard with a payware scenery.
This doesn't have anything to do with the fact that AES ones work better and some users would be ok paying extra for better jetways, but at least the default functionality should be provided, possibly with the option to use AES too.
Some developers are more enlightened than others: UK2000 already did that for a while, and Flightbeam is also following up for the next scenery. I'm fairly sure that, with GSX out, more and more users will press their favorite developer to do the right thing, and include animated jetways in their upcoming products.