5A Vandersteen

I am finding it a near-tragedy that this loudspeaker has been discontinued. It is/was a masterpiece (in my opinion), and was "near-affordable" for many. There are many great speakers to choose from, and this one was near the top. I have a pair, and mourn the loss.
Why do you feel so bad? At least you have your pair. Others who might want them can buy them used. 
I also had a much much loved pair of 5a and they are from an admitted “ fan “ a towering achievement. The reality is the cost to manufacture the layered MDF “ head “ and the performance of it did hot keep pace with the superior cabinet and equal drivers in the Quattro, especially the CT. YES you do give up the FABULOUS push pull aluminum sub, still available in the mighty seven. I had a massive room and the 5a were a better pick, but when I moved the Quattro CT would have outperformed it in many ways, so I got lucky and bought a pair of 7.... spoiled yes I know...

but a used pair of five a, set up well are freaking amazing...especially in Rosewood....
also, get the 7 high pass IF you want to improve them..and get hyper nitpicky about setup w Leica disto and making sure floors level, running Vandertones late late at hight when noise floor is hyper low.....

have fun

enjoy the music

From RV:

The 5 series was discontinued because they would have to go to $45,000 a pair and that is too close to the Model Seven in price. The Model 5 series is very labor intensive and by using some existing tooling we are building the new Kento Carbon based on the Quatro structure with significant embellishments for apx $38,000.
Always nice to hear from the manufacturer.
As to the op's near affordable, for whom, most can't put that much down for a home or will buy 3 cars for that amount. 
I think that's one of the problems with audio, it's becoming a hobby of exclusion due to crazy prices.
I think my 5As were ~$19K when I bought them, the most I have ever paid for a piece of stereo equipment, then and now.  
Didn’t they make 5A carbon too would think that is best of 5a and quattro ct..

I think that's one of the problems with audio, it's becoming a hobby of exclusion due to crazy prices.

I have to disagree.  I don't think there's ever been a better time to get high-value & performance at a reasonable price than today. Look at the Bluenode 2i at less than $500 or a PrimaLuna Prologue Premium integrated amp new at $2,300 as some examples.  Just because a high-end/ultra-high performance market exists does not mean hifi is a hobby of exclusion by any means.  That's like saying that because a 2019 Porsche 911S now costs over $115K that buying cars has become something only the ultra-rich can afford. 
and for $3k you can get that carbon tweeter in the VLR-Sig
add a sub later

affordable audio is amazing, lots of great gear out there without spending mega bucks...
I’ve been running the 5A’s for a few years, and they are keepers. Definitely would go to Vandy 7’s if finances allow one day, although I’d have to go second hand, almost certainly, and it’s hard to imagine anyone upgrading from them.  Might be along wait, but things are great in the meantime. 
I've have always felt like the Quatros were the best value in the line, especially the Woods (CT or ceramic tweeter).  I am using mine with an Audiokinesis SWARM subwoofer array which eliminates the need to go up to a 5 or 7 to get the better bass or power response - the SWARM is better because it is distributed and by being so addresses your room modes.  (I have extensive room calibration data to prove it.)

It will interesting to see what changes Roger makes to improve the Quatro - he has an excellent ear and he really understands the phase coherent multi-driver design better than anyone else.  The only thing that compares is a equalized full range single-driver on an open baffle with a bass augmenter, like Pass's SLOB open baffle design.