Hi Miss Snark,
I have a question that will make you want to punch me in the mouth. I remember when the commission for literary agents was 10 percent. It was so ingrained that agents were known as ten-percenters. Then, about 8 or 10 years ago, you guys raised your commission to 15 percent. At the same time, authors’ royalties were dropping. Deep-discount royalties used to be a rarity, and now they’re the norm.
How do you justify your humongous 15 percent commission?
What the hell are deep discount royalties?
If by some chance you mean royalties from deeply discounted sales, like those to WalMart and Costco, the sales outlet is called that but it's not the royalty rate.
I'm pretty sure royalty rates haven't dropped much, if at all, but then I'm not an old fart kvetching about how much prices have gone up since the good old days.
Feel free to not send me a query letter if you think I'm not worth it. In fact, hang out your shingle for 10% and see what you can do. Keep me posted on your progress.