It appears Ancestry.com's low-key sale of an AncestryDNA test for $49 has expired today. The price of an AncestryDNA test is back to the regular price of $99.
If you decided to go with AncestryDNA but missed the sale, just check the that website page often to see if another low-key (not well-publicized) sale occurs. Or, if you decided on one of the other companies, check their websites often for sales as well.
Hopefully, I can get the news of the next DNA sale, from any of the companies, out to sooner.
See you soon at Mt Clemens Public Library!