Re: Nah, I'll take the bezels
"More inputs" is pretty moot, do you need more than three inputs per monitor? My guess is that people who buy these are unlikely to use more than two."
I hardly ever need more than one input but if the monitor can be divided into four partitions for different inputs, you can either have several computers or even a set-top-box hooked up.
"Likely better picture" is subjective, but given that they have bigger pixels, and the panels are made by LG, I think you'd have to back that up with some actual facts, because I can counter that with "likely worse picture" with the fact that they have a lower PPI. Facts not opinions, please."
Not knowing your monitors beforehand, I gave that remark, assuming older tech - and it is.. But let's compare properly this Dell to your LG's, listing where the Dell has better specs:
Contrast Ratio - 2000:1 vs 1000:1
Brightness: 400 vs 300 (cd/m2)
Color Gamut: 100% vs 98% (sRGB)
Panel Tech: LG IPS Black vs IPS.
The are facts, not opinions. Your 27 inchers have better PPI and if that is the driving force when selecting monitors, then yes, your current ones have better IQ. Then again, you can just push this 52" a bit further back on the table and get the same visual density. :-)
"As for Thunderbolt, power delivery, LAN, etc., these are not things that really belong in a monitor. If I need a charger, I'll plug the device into a charger, rather than reaching underneath or behind my monitor to find a hidden charging port. These sound like "value added features" used simply to bump up the price, and none of them justifies the high price."
Thunderbolt is the defacto business laptop docking technology. Idea is to plug your laptop to the single TB cable, and you are then not only getting the monitor connected but your laptop is charged, all the USB devices like keyboard+mouse are connected, you're connected to the (home) office LAN and so forth. This monitor allows having one device less in your desktop. Thunderbolt monitors with very similar features are available from most monitor manufacturers, including LG.
You are apparently a desktop user and these features would be wasted on you.
"Moving on to the refresh rate; well, yes a 120Hz rate is higher than the 60Hz my monitors can manage. Again, though, I don't think 120Hz justifies the price, and since nobody in their right mind would be using these for gaming (the only real use case for high refresh rates), 120Hz is really quite unnecessary,"
120Hz itself does not justify the price. The price is partly because of the panel being manufactured in low numbers, this is largest 6K display on market, and yes, part of it is a luxury tax, "Veblen Good".
Of course Excel or anything static doesn't benefit from extra hertzes, nor is the lower input lag (in gaming) meaningful in office work.
"A refresh rate of anything over 20Hz is going to be unnoticeable."
Lower your current monitors to 30Hz mode (or whatever they allow) and move some windows around. Scroll up and down web pages. If you do not see difference in the smoothes and lack of it then it is better to stop discussing refresh rate any further. I have not used 120Hz displays, but a 100Hz display is smoother than 60Hz. It's nice but not necessary.
A low refresh rate (30Hz) is also tiring for eyes.
"So really, what are the "killer features" here? 6K resolution?"
It's a fucking big 6K monitor, with all bells and whistles and go-fast stickers.
With two monitors you always have that central part where the bezels meet. I don't like that.
"when pretty much every networked device on the planet now has wi-fi, neatly rendering it instantly redundant for 99% of users"
Apart from my NAS, my home is fully wireless as well. My workplace network isn't.
"Let's assume that Dell has commissioned LG to manufacture the panels for this monitor; it's a fair assumption,"
It is LG panel since "IPS Black" mentioned in the Dell specs is an LG trademark.
You sound very angry. People lilke to buy nice things once in a while. I drive a Toyota and it's my choice. I don't mind the geezer down the street who drives a Porsche. If my manager offered me either this Dell or 2x 27" monitors at my office desktop, I would gladly take the Dell. Is that a bad thing?