I think it is a valid point. If it provides the value to you.
I don't get these price discussions. If you earn your money by programming, I think it is crazy to be cheap on your tools if you can get the job better done using them.
If you program occasionally, then use some free open source editor.
People on construction sites don't use the cheapest tools available for a reason. If you use it to earn money, you shouldn't be short sighted.
The valid point is "it's worth it to me," not "lots of other things with less value cost as much or more and I willingly pay for those, too."
If you tell me a Ford Taurus costs $40,000, justifying that by telling you I spent $100,000 on a broken bike doesn't make the former a good deal.
The way I see it, $70 on its own is meaningless. A lot of people are taken aback because it feels like $70 for an advanced text editor. And in many ways, it is that with some IDE flair built-in.
I own a license and honestly still find myself in Notepad++ for a bunch of things. As a professional programmer, I have come to the conclusion that for my purposes it's overpriced. Your mileage ... well, it should vary.
I'm not sure why you go from "provides even less value" to "that 'even less value' < $30".
A $30/month SaaS app is usually paid for because it saves/brings value of $100+ per month to your tasks. A good editor easily brings more value to a developer.
Actually my comment there ignored "value" altogether, really. The value is irrelevant.
My point is you can't quantify the value or justify the cost in this way. Surely, a $40,000 Ford Taurus provides more value than the $100,000 broken bike, but that doesn't mean the Ford Taurus is priced appropriately for needs.
I don't get these price discussions. If you earn your money by programming, I think it is crazy to be cheap on your tools if you can get the job better done using them.
If you program occasionally, then use some free open source editor.
People on construction sites don't use the cheapest tools available for a reason. If you use it to earn money, you shouldn't be short sighted.