Interesting that you regretted selling those omni-directional speakers.
My own room lends itself to omnis (being semi-circulsr with dining and kitchen areas behind the speakers) and a couple of years ago I was seriously considering getting either German Physics or MBL omnis. These were considered the top brands for these niche market speakers.
I auditioned both brands at dealer showrooms (not their top models but in the £15K sort of range) and indeed they did what they are designed to do - sound good over a very wide area of the listening room. However, when sitting in the ideal listening position and closing my eyes, there was no way I could confidently point towards the trumpet, or the oboe or any other individual instrument. Their imaging was so poor compared with my horn speakers that I now forgo the advantage of good sound in other areas of my room, in favour of stunningly realistic sound in my admittedly small sweet spot.
Maybe I over-value great imaging but after experiencing it, I’ll never want to lose even part of the thrill of seemingly being in the fifth row of the stalls!