Don't need a citation, as it's my personal experience. I'm not going to do a market research project for fskcing light bulbs. I buy them at Target, or wherever. They maybe last a year, like incandescents. Occasionally they last much less, like a week. And when they die, they are e-waste (at least better than CFLs, which are straight up hazmat waste). An incandescent bulb is a bit of glass and metal.
I used to find incandescent bulbs 4 for a dollar on sale. An LED bulb is typically at least a couple of bucks, that's why I say 10x the price.
I will grant they use less electricity, but my electric bill hasn't noticably changed. The amount of electricity I use for lights in my home isn't even noise in my monthly budget. But what is annoying is having to get out a stepladder once a month to change a bulb, when the huge selling point on these bulbs is that they were worth the price because they would last 10x as long.