I have never had a section myself (forceps, then two homebirths). But I have quite a few friends who had a section for their second. The disclaimer is that this was usually after a complicated or traumatic first delivery - serious tear, retained placenta, etc.
They would say that the advantages were things like calm delivery, more foreseeable complications, known timing and therefore easier to plan. For most though, it would be that they then know that they will not have a rerun of whatever complication happened first time. Or that ongoing complications like pelvic floor weakness won't get worse.
The downside is basically the recovery. You skip the pain during delivery, but for most people there is a fair amount of pain afterwards. And the recovery can be very tough. Especially if you have an older child to look after. And, of course, you're going through that recovery whilst looking after a newborn.
I think that, for the majority of people, the intensity and pain of a natural, straightforward birth would be preferable to a section. But a section is preferable for most people to complications. The issue is normally not knowing whether you'll get uncomplicated or complicated if you try vaginal. You are in a fairly unusual group in feeling that a section would be less exhausting and mentally draining than even a straightforward vaginal delivery. (I'm leaving aside for the purposes of this analogy those with tokophobia, or health conditions or whatever than mitigate strongly for a ELCS. I'm just meaning your average Joanna Bloggs looking at outcomes). I'm not saying that you're wrong at all, but that you might have a limited pool of people who can tell you that they've been through a similar process.
If your biggest issue is staying in hospital, I'm not sure how a section helps. Wouldn't something like an early epidural compromise your desire not to go trhough unmedicated labour (entirely understandable) and your desire not to stay in more effectively? Or does that not appeal at all?
Good luck. After my first, rather traumatic, delivery, I was torn between homebirth and pushing for a section, but I tipped the other way. 