I was hesitating about replying to this because I did not want to seem promotional. So I turned off my sig
Yes plenty of people make money selling or reselling PLR, more people than ever are buying it. Not like it's gone out of fashion, and I doubt very much that it ever will.
But... there is SO much competition these days. So if your thinking about reselling the same things every one else is, you might have a tough road. Not saying it's impossible, just saying you might not make much of an income. And if your selling the same as others, you will probably have to have low prices to compete. Some people are just about giving stuff away, makes no sense and they are just hurting every one. They can't be making much of a profit.
Plus, if your reselling the same stuff as every one sell, you'll need a big selection if you want to make any descent money. 10 or 20 ebooks is sure not going to make you rich. 100's might be some income. 1,000's is a better bet.
Also, if you do a better job of "selling" your stuff, you have a better opportunity. So many PLR sellers put little to no information about their products. Surprised they sell much.
Now... if you create new PLR yourself, content no one else has, then you have a much better chance. Then you could have something. Then you just need to get the word out, get traffic or build a following. It is also possible to re-purpose PLR, turn it into something else, a different format. That can work as well.
Just my thoughts.
On a side not about PLR software. I for one just about stopped selling it because so often it stopped working down the road and I got tired of customers getting mad at me. Just my experience. If you create your own software and you can fix it, that is another story. But just reselling it can be a pain.