Not to me. Most modern games eventually arrive at a point where there's grind required to proceed. I don't like grind. It's not fun to me.

I also lose interest when the gameplay loop has nothing to offer other than upgrades on the same old pattern. After a while doing the same thing to beat the same enemies/bosses who basically only come in a few flavors just with longer health bars and different colors or designs is of no interest to me.

I also have a busy life and I don't always have time to grind to be able to continue the game or fight the 3000th variation of the same mobs I was fighting when I started, so I find other things to do with my time that's actually productive for me, or more fun.