Edit: Jesus Christ, people. If you buy a $150 Thinkpad made by slave labor instead of a $1,200 MacBook made by slave labor, you're still supporting a capitalist economy based on slave labor. We all do. We have no choice. The number of smug liberals in the comments saying "well I buy a cheap used laptop" or "well I buy coffee beans and make my own coffee" are completely missing the fucking point.
Don't tell yourself your consumption is moral. All of us make unethical choices every day because there is no ethical consumption under capitalism. Accept your shame and guilt and let it drive you to do better.
It's because they aren't using a used ThinkPad
Asus > Lenovo
They're very similar, but you get to support Taiwan with Asus. You don't have a pointing stick, though; if that's something you care about. The hardware is also similar, but Lenovo generally has better cases/ outershells, but Asus also outperforms them on price point and internal hardware and software.
Not really supporting either business by buying a used laptop tho?
When people make memes about you using it, you’re supporting the company with good exposure. They should be grateful.