Those are all expensive, used Thinkpad is below the ground-dirt cheap…$150?!
My Thinkpad Ultrabook was insanely cheap even with a docking station. I do donate to Pop OS once a year though as a thanks for their work and I recommend the same. It’s like $12 a year on their site and they do great work.
Trying to get one of their laptops but thats in short order for me, for now.
Adding on:
lack of quick shipping
proxied payments like PayPal or apple gpay
some use laptop kits that are supposedly cheap
hardware different from software if it breaks and there’s no store or big company to ask for a refund from, you’ll be pissed
some of the hardware reviews about bugs and their handling of them are damning