I guess I'm the cheapie around here. Running an 1960-era 6V6/12AX7 integrated making maybe 10 wpc (that someone gave me years ago and I recently recapped) through bookshelf speakers rated 84 db. Yet somehow I'm happy with it, even amazed sometimes. If I'm playing it at mid-volume, I can hear it nicely from outside, including detail.
I notice a lot of EL34 family amps (6L6, KT-**) being resold, not as many 6V6 or EL84 or 45 or 2A3. Granted that the latter aren't best sellers to begin with.
In my heretical unwashed opinion the 6V6 has an open musical sound that has emotional involvement and doesn't bring fatigue. Cal Tjader's vibes sound like they're hanging in the middle of the room.
You've got a boffo collection of speaks, buy something used (Scott, HK, Fisher, etc) and learn by listening. It's not like it'll be dead silent, just quieter, and you might be surprised at how well it works with lower numbers.
If you get that glissando up your spine for not much $$$, that's a even better feeling.