So
here's the shortlist (approx.). All are Latitudes. All are 1920*1080 IPS.
14'':
(1) PLN 949: 5440: i5-4310U, 8GB RAM, 128 GB SSD, LTE modem, great condition, Intel graphics the Budget King
(2) PLN 1299: 5450: i5-5300U, 8GB RAM, 256 GB SSD, great condition, no modem, GeForce 830M the Budget Gamer
(3) PLN 1650: 7440: i5-4300U, 8GB RAM, 256 GB SSD, touch screen (IPS Optronic), HSPA modem, Office 2016 pro OEM (important for me), carbon version the Touch Officer ;P
(4) PLN 2111: 5470: i6-6440HQ (4 phys. cores), 8GB RAM, 256 GB SSD (M.2), great condition, very good battery time (12 hrs idle is still more than twice better than my 7240), LTE modem, Intel graphics
(5) PLN 2333: 5480: i5-7440HQ (4 phys. cores), 8 GB RAM, 256 GB SSD (M.2), modem
15''
(6) PLN 1449: 5550: i5-5300U, 8GB RAM, 128 GB SSD, good battery, perfect condition, no modem the Budget Fifteen
(7) PLN 2049: 6540: i7-4810MQ, 8 GB RAM, 256 GB SSD, big 9-cell battery (97 whrs), Dell outlet (never used), DVD, no modem the Budget 4810MQ
( 8 ) PLN 2099: 6540: i7-4800MQ, 16 GB RAM, 256 GB SSD, ATI HD8790, big 9-cell battery (97 whrs), exhibition unit, DVD, no modem, **TN not IPS** the TN Workstation Gamer
(9) PLN 2222: 5580: i7-7600U (2 phys. cores), 8 GB ram, 256 GB SSD (M.2), GF 930MX, modem, good battery (4 cell, though), **TN not IPS**
(10) PLN 2279: 6540: i7-4810MQ, 16 GB RAM, 256 GB SSD, big 9-cell battery (97 whrs), Dell outlet (never used), DVD, no modem the Max Beef Non-Gamer
At the moment I no longer have to worry too much about spare power, as the two Power Companions are 18K mAh each, so I'm gonna last. The only reason to pick a U processor is to go higher-gen and get the same power as a lower-gen M, MQ or HQ with a lower electricity bill.
I'm partial to 7440 series because of the keyboard I don't really feel enthusiastic about the new chiclet keyboard taken from the 5000 series, with obligatory trackpoint and with Home & End through Fn only.
I'm drooling over the DELL Outlet status of some of these babies, but a slightly used 2017 laptop might still be better than a 2013/2014 outlet. BUT, series 6000 has the keyboard I like. Still, that big bad 9-cell battery supposing I get a decent one is actually not as good and long-lasting as the smaller batteries in those newer i5 HQ machines. And the i5 HQ processors have four physical cores, so they're much stronger than i7-Us, though not as strong as 4800MQ.
Still, that's a lot of excessive power, especially without a dedicated graphics card. Largely wasted if I'm only going to use it for having 1 Trados, 5 Word/Excel, 12 Acrobat and 3 browser windows and 15 browser tabs and not experiencing typing lag anywhere.
Also, unfortunately, quite a lot of the newer ones are TN and not IPS. I'm not sure that's actually bad, considering how Dell's TNs are very good TNs and Dell's IPS aren't necessarily good IPSs and are sometimes quite bad for IPS. And for work and no gaming I don't care about anything IPS vs TN other than readability vs light. For gaming, if any, the IPS isn't going to make all that much difference vs calibrating the TN.
For pragmatic reasons, I might grab the Touch Officer Office 2016 Pro usually costs more than a half of that laptop's price, and the modem always saves me PLN 100, plus the touch screen is quite comfortable for highlighting text strings. But touch = glare = ooops, sunshine!
It seems in terms of 15'' nothing really pays off below PLN 2K, but above the 2K point 15'' is actually cheaper than 14''.
Finally, there are those 3480 Celerons, Pentiums and i3s, starting from PLN 1300 and going up to 1800 depending on the config (e.g. i3-6100U with 12GB RAM nets 1600). They're weak, of course, but they are new and cheaper than older, used configs that offer comparable power while drawing more juice (and being more expensive). They come with DDR4 RAM and M.2 SSDs to boot.
What say you?
I'm perfectly fine with paying some 300400 extra just to be over it and be able to focus on work.