I am in the camp of "Immersion needs to be put on hold at times for playability's sake, even if it goes against what I personally want from the game because I realize I am not the only player" if that's where you're coming from
The problem is that there are so few games available to those who
do want a fully immersive experience. The thing is, the Elder Scrolls has, in the past, provided a believable, well developed world, but is now moving in the
wrong direction. Instead of building on the previous installments' philosophy towards immersion, believability, and expanding outwards, the trend seems to be making things
smaller, less grand.
Beyond that, I feel "playability" used as a justification is about as worthwhile and meaningful as "fun". The terms are far too nebulous and subjective to offer anything in terms of solid reasoning.
If we can believe that you are loading all the excess loot onto a boat. Why are you not charged extra? Why do you not have to wait an extra 2-3 hours to load your loot? Morrowind just provides you with a convenient excuse for exploitation. Both systems exploit the game mechanics to allow transportation of a massive amount of goods due to how fast travel is handled in both games, a simple teleportation-like movement that speeds time up to sync with your simulated journey.
But you
do recognize that there is, at the very list, a clear difference between a
one second spell indiscriminately providing
hours of an effect, and a transportation that actually is physically capable of transporting large quantities of goods, but only has a single flat rate charge? Right? In the latter case, you have a poorly designed economy. In the former you are completely disregarding the laws of physics for no discernable reason.
And as I said, I agree there should be a variable transportation fee depending on whether you are transporting freight versus purchasing a personal boarding pass.
If you want, we could bring horses into the equation. Or scrolls of icarian flight.
Things like saddlebags and horse-drawn carts are exactly what I would like to see. Icarian scrolls are alright, but I feel they made sense mostly in the context of how you found them. They were little better than novelties in terms of actual usefulness.