So how many use MM cartridge and intend to keep it that way ?

It's true sometimes it's an exaggerated bloom in the bass region, but other times I begin to hear more detail and a stronger mix from the bass lines. Example would be Zeppelin JPJ and stand up bass in jazz even from a very low cost cart as a Shure m35x even if it's lacking in other areas.

2 Shure V15 RS
1 AT14Sa
1 Stanton 500 MKII for 78s
2 LOMC
1 HOMC

I can list some of the very best MM/MI/MF from my own collection:

Glanz MF61
AT-ML180 OCC
Grace F-14 Exellent (w/F12B stylus)
Grace F-14 LC-OFC
Grace LEVEL-II BR/MR
AT-ML170 OFC
AT-20SL
Garrott P77 
Joseph Grado Signature TXZ
Pioneer PC-1000 mk2
Stanton W.O.S. 
Victor X-1II
Victor-X1IIE 
Technics 205c mk4 

I run two TT's, one's setup for MC and the other MC or MM but mostly MM.   Which I use is based on the LP I'm playing.  Each type of cartridge flavors the meal in it's own unique way.  

1 turntable, 3 arms, 3 cartridges (MM, MI, MC).