SPeakers 90% of your sound

I also disagree that Speakers weights 90% in a system.
Assume the room doesn't change, it's all about system matching. In my opinon, I think the speaker and amp needs to be match before you can make your claim about what's the most important.

Phasecorrect, there are many ways to set up a system. Some folks like to get the speakers first and then look for the amp to match it. Some other folks like to get the amp and source setup first before getting the speaker to match it. Either case is fine depends on what you prefer.
This is not Chicken or egg debate. Which ever way comes first is fine.
I choose the speaker first because of the size and look requirement. In this case, I would try out different amps. Chaing amps can be very dramatic.
If you already have nice amp and source and you're looking the get a speaker to match the amp then speaker change can be dramatic to your setup.
In my opinon, both amp and speakers are equally important to system matching. I do think both made up a good 60% of your system. You then have the other 40% to play with the other components (source, cable, preamp, tweaks)
Since your room is fixed value (unless you plan to switch rooms), I do not take it into consideration when you purchase your equipment (assuming you only use your room as the reference listening room.)

Tubegroover I agree with you that sound room matters. However, we're assuming that we can't remodel our listening room within 5 minutes while we comparing different sound. We're only comparing the equipment here that's why we should assume the room acoustic is a fix variable. If you want to go to the extreme, might as well meausure the sound deflection from the chair your sitting with the sound meter too. While you at it, why not measure the temperature and humidity. While you at it, why not measure every spot with sound meter. While you at it, make sure that you have your ears check out before we do any audition. Oh, make sure that you're not under any stress while you do the audition too. Anxiety can change your listening mood too.

Tubegroover, I do understand room makes a big difference. That would be the minimum requirement to enjoy the music. That's why many performer care so much where they perform. If we do put room acoustic as part of system evaluation then I would weight the listening room as 30 to 40% of the sound. I was talking about if one already have an ideal listening space and not comparing components at dealer or someone else's home.
I'm not sure about you but many of us can only treat our room to certain degree with a very limited real estate and especially ojbection from family members. If I live in a mansion like your humble home then I don't mind build a dedicated listening room.