I think ladders are "needed" because:
1) They give you a different perspective of the environment.
2) They are very nice and good for stealthy characters.
3) Can give you an advantage or disadvantage in battles, making things more interesting.
4) It's 2011, not 2002 or something like that. No more "teleport" to the top.
Personally, this is what I think. And if ladders aren't included, I'd rather have them spend time on something else like mounts, spears, better graphics, travel services, etc.
1) Maybe, but i'm not pretend to be at ladders all day long admiring the environment... What i'm try to say (and sorry but english is not my native language, so I need your understanding in this matter, thanks) is if you want go from A to B point at top, you use stairs. No need ladders to do that...
2) Agree, but in that case, If BGS want's to give more advantage to stealthy characters i prefer ropes, because you can put in your stuff instead...
3) Do you really need MORE ADVANTAGES IN BATTLE in TES?? Why do i mentioned AI in previous post? In battle you have almost ALL advantages (human Int, potions, spells, pause...) against animals enemies, and in battles against humans they cure themselves 1, 2 maybe 3 times and that's it !!!
4) When i use stairs in Morrowind (and Oblivion) is not teleport, is just going from A to B in same cell.
Said that, i totally agree with you that travel services as in Morrowind will be cool in Skyrim if there. But i keep my opinion that a better AI for NPC's will be crucial for gameplay and battles is Skyrim.