@TonyPlush it would also depend on the type of pen. Montblanc sells at least three various kinds: fountain pens, ballpoint pens and rollerballs. And mechanical pencils.
Fountain pens do have their fans, and at those the nib (the part that actually puts ink on paper) do vary a bit between models and brands.
For ballpoint pens and others with a complete cartridge, the cartridge makes for most of the writing feeling. The pen itself is in that case just a holder for the ballpoint refill cartridge. Weight, shape and material may affect how it feels to write but in general the writing feeling is very similar across brands.
For a ballpoint pen, the most important aspect for good, nice, reliable writing is frequent use so it don't dry out. Use the pen every day and it will work good. Until the ink runs out. Then you replace the cartridge.
The pen that gave me my forum nickname, the Caran d'Ache Leman Ballpoint (given to me as a gift on my 40th birthday, starting my brief pen collection) is a $400 ballpoint pen, but it uses the same refill cartridge as the Caran d'Ache 849 model which typically costs $15. The more expensive pen is larger and heavier which fits better in my hand - but it's the same cartridge! Writes the same!
Even before finding MMM, I sort of realized how many pens I have, and how many cheap cheap pens I got in stores, at trade shows etc etc. Most of them plastic of shitty quality. My first unofficial step towards mustachianism was to vow myself to not accept any new pens in my life until I've used up or lost the ones I have. I've almost kept this promise for a year now, with the exception being only one pen accepted which had the logo of a friends business on it.
Actually, students of marketing may look at Montblanc for inspiration. If you go back 50 years, my understanding is that they were just one in the crowd of pen manufacturers, selling pens of all price points. With time, they have upped their offering in terms of price and "luxury" while many other manufacturers have gone under. Good for them, but you don't have to buy their products.