For starters I don't audition speakers in dealer rooms. There is no way you can tell what a speaker sounds like in different rooms. To say that one speaker sounds better than another in different rooms on different gear is ridiculous.
I completely agree with you.
I had the chance to compare the WP8, Avalon Indra, Eidolon and Isis in the same room with the same equipment behind.
My room had a dip at 65hz and a bump at 40hrz so speakers will sound different my room compared to your room.
The other thing is a speaker that cuts off around 38hz but goes down to 28hz and has low output or doesn't move much air is less likely to affect the lower midrange. If you add a sub to your Andra listen to what it will do to the midrange. That is what all full range speakers have to tackle. Not easy.
I get -3db 24hz in my room with the Watt puppy 7. With the Eidolon I got -6db at 32hz.
Ok with the room effect you go down to 28hz, but i'm sure that the 70/100Hz is far to exagereted with that deep bass.
The eidolon is far more neutral so maybe it doesn't go that deep , but the bass and midbass that the avalon produce is (in my opinion) far better in term of quality
We always read in review that the bass region on WP8 is terrific, i don't think so
For me the midbass region is always the same and not enough articulate contrary to the mid bass of an indra for example
Size does matter to a certain point ;) Quality of bass is the key for me, but for movies WP8 's bass is great and go deeper.