For those who need MultiFormat or prefer DRM-free, a large number of these seem to be on special sale direct from the publisher, over at Ellora's Cave's "
Values from the Vault" page.
They've got 25 pages (and seem to be adding more; up from 24 last night when I went and picked up the Gellis historicals) of discount e-books; some even cheaper than Amazon's price at 99 cents and up, with no extra surcharge for international customers.
And it's not all erotica (though a good chunk of it is, obviously), and tamer romance readers can enjoy some sale books from their non-erotic Blush line and also find what look like reprints of classic backlist author books as well, if they're willing to dig through a lot of covers of scantily clad people looking like they're in the middle of sexyfuntimes (unfortunately there's no real way to sort the sale books by author, genre, or price, so brute-force browsing is the only way to find out if what you want is cheaper there; or direct search and comparison click).
And there's also a bunch of m/m romances if you're into that, as well.
Here are some of the 99 cent ones which I noticed which had notes on the page or author bio saying they were backlist reprints:
Roberta Gellis:
A Woman's Estate (Heiress #5) and
A Silver Mirror (Royal Dynasty #4)
BTW, if you like Gellis' medieval romances, Baen who normally sells sf/fantasy has a 4-book bundle of them at discount pricing which amazingly hasn't expired like it was supposed to 2 months ago.
Details in this thread if you'd like to pick it up while it lasts, along with 6 free fantasy romances of hers from various Baen promotions.
Beatrice Small:
Adora
Madeline Baker (who also writes as Amanda Ashley):
Apache Flame
Susan Sizemore ("USA Today Bestselling Author"):
A Kind of Magic (previously
One Of These Knights)
Isabella Montwright:
A Scent in the Night