The increased performance is the only reason to buy an M over a lesser trim. Performance metrics are as objective as you can get and modern BMW's are far superior in that regard.
Why else would you buy an E46 M3 over another E46 3 series if you didn't care about performance? According to you it's the last good car BMW made. The M2 Comp is an objectively better car than the E46 M3 if you care about performance, which you certainly do. Stop playing the victim because you suddenly don't want to have a discussion about a comment you made on a public forum.
The increased performance is the only reason to buy an M over a lesser trim. Performance metrics are as objective as you can get and modern BMW's are far superior in that regard.