You Don't Need a New Laptop
thinkhuman.com
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These all seem like pretty cost effective options. It’s certainly much cheaper than when I was a kid.
Also, if people are lucky enough to have an electronics recycler near them, I always recommend buying refurbished machines there. The prices are great and (at least with the one near me) they come with a warranty.
Save up, $10/month for 5 months, and get a used laptop that will likely last for years. If someone can't afford that, then it simply isn't a priority for them, which is fine.
The bigger issue for someone in a very rural area is getting internet access. That will be a bigger issue and expense than the computer. Over time, internet is likely a bigger expense for everyone than the computers they use to access it.
The real barrier I've discovered is perception: we've been convinced of the notion that, like cars and other things, we need the newest, fastest, shiniest computer available. People almost disdain 'used' computers.