Hi Monica,
Welcome to the Mattress Forum! 
As you’re probably already aware, I don’t keep up to date records of all of the adjustable bed bases out there in the industry. The primary focus I keep is on mattresses.
I know you’ve already done some searching on the forum, but for anyone else reading there is more information about choosing an adjustable bed in post #3 here and the main adjustable bed topic that it links to that can help you choose an adjustable bed based on price vs features comparisons and also includes some retailers that you can use as good sources of information about the features of the adjustable beds they carry and as pricing references as well (in post #6 in the main adjustable bed topic). Of course there are many other sources as well and prices can change on a regular basis so I would also include some internet searching in your research. I would also keep in mind that online advertised prices are often price controlled so make sure you call the stores you are considering to find out their best prices rather than just looking at websites.
As far as a recommendation, I would consider all the major adjustable bed manufacturers to be closely comparable in terms of reliability so I would use price and feature comparisons to choose between them. I would also give some careful consideration to the type of features that you may find useful over a longer period of time because some of the features they offer may seem very “enticing” when you are shopping but some people may find that they don’t use them as much as they thought they would once the novelty has worn off. I do maintain an adjustable bed base thread with some manufacturers listed (I believe this is the thread you mentioned that I started in 2012 and I add to as needed).
Without knowing the specifications of the unit, there would be no way for you to know if it was a good deal. Regardless of the overall price, you’d want to know the specifications of the product (features, motors, lift capacity, etc.) in order to make an educated choice for yourself.
I don’t see those models listed on the Ashley web site – only the M9 series. If you can provide a link I would be happy to offer you an opinion.
One overall trend I have been seeing in the industry is the cheapening and introduction of lower quality adjustable bed units. I wouldn’t call it a “flood” into the market, but with the popularity and increased advertising of adjustable beds as a “lifestyle choice”, there are more companies, especially imports, looking to capitalize on this trend. Three’s also quite a few new introductions of king “one-piece” power bases, with only one motor to drive the entire king mattress.
Phoenix