What's the score with "A" frames?? Antique or venerable old-timer...

[Warthog]

Whilst doing a much needed clear out as a direct challenge to my nature to horde, I found yet another tent!!

We bought a compact-ish 2 man dome for our trip to S America, we were then treated to a nice mid range tunnel tent now that travel involves a dog (those things are huge!! the tents I mean, not the dogs).

Then I found my old A-frame from when I was a kid!!! This things must be about 30 years old, but it has a nice tough plastic ground sheet, as opposed to the gossamer groundsheets the other two have, a cotton inner: very breathable, and a nice tough flysheet.
Packs down as small and imilar in weight to the other two and as spacious as the dome.

I once read that A-frames were very stable, so why are domes now the norm, and A frames seldom seen.

Is it really old hat technology or does my faithful old A-frame still have a niche to cater for??

If so, what is it??

In other words. is it worth keeping for certain things?