MP150 or MP200


I am currently using a Nagaoka MP110 cartridge and want to upgrade . I really like the Nagaoka sound and was considering staying with the Nagaoka sound . My question is will I get a considerable upgrade in sound going to the next level cartridge which would be the MP150 which would be a 329.00 investment or in order to get that big upgrade I would have to go to the MP200 which would put me almost at the 500.00 mark .
mcmvmx
The mass of my Project 1 expression 2 carbon fiber tonearm is around 8.6 grams which I understand is on the medium side . The specs on the compliance of the Nagaoka MP110 puts it a little on the low side for a moving magnet cartridge . After over 50 hours of breakin sometimes I was having a little dryness with upfront sound on some recordings in the uppermidrange . Put some blutack on the headshell to see if the uppermidrange forwardness was caused by compliance problems between cartridge and tonearm .
The forwardness was subdued greatly up to the point where its not a problem anymore . 
I like the MP110 very much . It's a very coherent and controlled sound that hardly ever irritates . Its bass is not the most powerful or tight but is in line with the sound spectrum of the cartridge . It doesn't jump out at you but its there when you want to hear whats going on down there .
Come to think of it this would describe the sound of the cartridge as a whole .
Now what is it that I don't like about its sonics on my turntable that has prompt me to upgrade ?
Its lacking of low level detail . It seems that it is so smooth that in its intent of always sounding smooth it took away a bit to much information . Bare in mind I am not talking about dynamics . It is nicely dynamic . For the price its a very.musical cartridge but its musicality comes at the expense of a lack of uppermid and high frequency information . Does the MP150 give me whats missing in the MP110 or in order to get it must the move be towards the MP200 ?
Nags are WAY overpriced for what you get, AND what you hear.

You need to expand your horizons.

For THAT kind of money, you can select many vintage carts and original styli (multiple!) that will absolutely TROUNCE the Nags, ALL of them!
Wolfie62 would you share a few of those combos that you’ve tried and recommend? I’m looking to explore some different vintage carts. 
Apart from the Nagaoka for which I agree went overboard when they changed their pricing I' ve been considering Denon DL 110 , DL 301 2 , Grado Opus 3 new timbre series , Audio Technica New OCL series , Vessel cartridges Ortofon Quintet red .
Peter Lederman, of SoundSmith has stated in his videos, that the suspensions in cartridges have limited lives, whether they are in use, or brand new..sitting in a box for years...decades.. in a warehouse. The suspension gets stiffer over time, degrading the sound quality.
Are these vintage cartridges being recommended immune from that issue?
Yes, obviously his business rebuilds cartridges and manufactures new ones, but Peter KNOWS cartridge technology.
Just asking, since many forum members know way more than I do about cartridges.
Is he referring to moving cross cartridges or does that extend to mm, mc and in the case of Nagaoka.. mp (moving permaloy)?