In real-life, the the ilouds and MTMs aren’t that much different either. I have both. There are differences.. just not worth the differences in price/upgrade, IMO. I have a pair of KRK VXT 6’s which I really like compared to those little iloud speakers. These larger monitors provide greater headroom and move more air, so you can bask in the music too.
The larger speakers - generally - provide a broader (and sometimes imbalanced) bass response, which can sometimes overwhelm in smaller spaces. But the more expensive monitors are going to be tuned better across all frequencies, so, do read-up on them reviews. I also have some Adam T7V 7” monitors ..they’re good, definitely worth the cash, but are in storage right now. I like the KRK VXT6’s better.
I also have some KRK Rokit 5’s I originally bought for a TV.. Had some Rokit 6’s for a while too.. Rokits. Nope. ..never personally had much luck with them.
The Yammies look good though. Lots of good press on those. I might consider the smaller speakers 6/7’s for smaller rooms or closer monitoring - that’s just my preference, personally - just to help keep some of the lower frequencies better balanced as they are being Howitzered toward my head..
....But again, the higher-end speakers are going to provide a better mix of frequencies, so, it’s what you want to spend on these things, too.
Best of luck. :0)