Most of us are attracted to a kind of sound. If you are lucky enough to have found speakers that really appeal to you, then different house sounds are not likely to sound better, only different or not as good. So, upgrading is easy, get a better Martin Logan speaker if you want to upgrade.
Sometimes our values change as a part of the learning process. For instance, I used to have a set of ribbon speakers with a bass driver. The comments were that this kind of design does not have great coherency across the audio spectrum. I couldn’t hear it. I was really happy.
Over time I attended hundreds of acoustic concerts and I started realizing the sound I liked wasn’t very real and they sounded great with only a couple genre of music. So I switched. The lack of coherence became obvious of my old speakers and other shortcomings. Now I am on my third set of this brand. If I want better speakers, I just go up a couple levels.
So, for now and maybe forever you are good.