Do you buy job level boosts or prefer to level them instead?
Feel free to share your reasons if yes then why and if no why not

My reasons:
For me, after leveling one job from 1 to 60, I decided I don't need to do it again unless I may feel like going through the leveling experience itself instead of having the job as to me it's an extra waste of time and I prefer playing in the latest content, I also dislike the grind of PotD (considering also that I have to go through HoH later) so I just prefer to pay the price as time is money and if I take the learning of the job into consideration, I still can spend some time to learn the job after buying it from 60 to 70 and then in 70 too

So what are your reasons?