1. It's black. I used a laptop that was silver and white for years; it sucked. Being boring, non-flashy, and non-reflective is important to me since I get to use this computer in places where the lighting is outside of my control.

2. It has a 15" screen. That's the right size for me. (I do not care that it is larger heavier and heavier than alternatives; that part isn't on my radar.)

3. The keyboard is centered. It accomplishes this in part by lacking a numeric keypad. (I do not use numeric keypads because I grew up with an 85-key XT keyboard that could have a numeric keypad, or cursor keys, but not both at once...and I chose cursor keys.)

4. Ports. I often connect my laptop to other things. That's an important part of how I find utility with laptop computers.

5. I found it very cheap on eBay with a housing that still looked very minty.

It's been a fine machine. CPU and RAM are maxed out (amusingly, the cheapest way I found to get the best CPU was to buy the whole bottom half of another T530 that already had one installed, so now I've got spare parts). The cheap third-party battery works for most of a workday in testing, and I've never run out when away from an outlet. It's lovely.

It's hard to find anything more-recent that meets these requirements, but maybe I'll be able to score a used Framework 16 or something at some point.