I think it makes sense to pay more attention in this area, since it's where guests spend most of their time. It could add well to the difficulty curve, since a small park doesn't need a solid queue management, whereas poorly managed queueing in a major park can just about ruin your day. If buildings can be set down and used as restaurants or gift shops, perhaps they could also be simply designated as queue areas for a lazy option, but it would also be great to be able to manually build small paths that snake around with features described above. I wonder how difficult it would be to click and drag over an area and have a snaking path worked out automatically?
Also, depending on the policy of a park, the entrance can have different requirements. A park needing payment/tokens for each ride needs an employee on every entrance, if not, a turnstile is sufficient so there are different costs too. In rct3, every ride needed one square for the entrance regardless of whether it was a slide or a roller coaster, it would be nice to scale from rides where you can essentially walk in off the path and queues from themselves if they need to, to essentially buildings with ride control, fasttrack, disabled entrances, bag check, entertainment. By directing resources and space to this stuff, you would get a better throughput, enhanced satisfaction, more money
