I've bought a lot of these Archive titles, usually using coupons. I've bought a few of the bundles. What it comes down to, for me, is how much do I desire a particular title?
I'm assuming that few, if any, of these Archive releases will ever appear on a pressed DVD. So first and foremost, I weed out the titles I have no interest in, at any price. Then I try to identify the ones I want the most and, so far, with patience, those are the ones I have used the coupon codes on. And I, like others, rely on someone posting those codes from time to time. (For whatever reason, only rarely do they show up on the websites that list coupons.) That leaves me with a large number of titles that I might buy if they become available at a sale or coupon price. If they don't ever come on sale at a price to my liking I just won't buy them. Right now there are about seven or eight I would buy should a nice coupon appear but which will go unbought by me until it does.
I waited for the Randolph Scott bundle, not knowing for sure if it would finally show up. However, I did not wait for the elusive "Women of Warners" bundle that has never appeared; I have purchased most of the Lupino and Sheridan titles I wanted using other coupons. Now I hope that there will eventually be Hedy Lamarr, Al Jolson, and Elizabeth Taylor bundles, because I think I would enjoy most of those titles, but not at the full price. But if the bundles never show up I may or may not eventually pick a few of those Lamarr and Taylor titles that I find most interesting.
So what's my point? That I have some idea of what I would pay for any title I am interested in. There are a few as yet unseen titles that I might purchase for full price someday - but only a very few. Whereas some might become attractive to me if they become available in the 5 for $49.95 category, etc.
The $19.95 is a single price applied to almost all these Archive releases. Of course, I wish it were far less, say $12.95. However, for some of us - a long-desired title might be worth that $19.95 price. Others may choose to wait for bargains, etc.
I am sure Warners compiles sales data on all the Archive titles, including how sales respond to coupons, etc. But I will say one final thing. My initial ardor for the Archive has cooled somewhat and, with the appearance of more and more titles, the odds are less likely that I will rush to purchase any title except for the ones on my all-time want list.
Over the years I have bought a very large number of DVDs and CDs - almost never at suggested retail prices, because I know if I shop around and wait I can find bargains. Since the Archive is controlled by one source - Warners - (and don't think they aren't aware of what TCM and others are selling the Archive titles for) - it is up to me - the customer - to decide what each newly listed title is worth to me.