I kid, I kid, it's all down to preference... That said, you can get yourself a single mechanical keyboard and call it a day, until one day you try a different board/layout with different switches. Maybe at your friends house, or at a shop, or more than likely: at work. You'll be forever wondering "I liked that...".
Keyboards really are a special tool for us. I've spent considerable amount of time and money on them, and I consider myself fairly frugal (well, in non keyboard related matters). All to say, it's very easy to fall into this rabbit hole, especially when you spend so much time working with these things...
That's why you start with Blue and only when they complain you switch to Brown. ;)
Source: I own a keychron k2 v1 with Gateron browns and a CoolerMaster something and Das S with Cherry browns.
I do have mechanical keyboards and feel like I get a benefit from them, but I think you can get most of the way there with a standard non-laptop-style keyboard with keys that go all the way down.
Although interestingly reading this thread it seems like there are a lot of people who like the laptop-style keys, so who knows. Maybe it's all just muscle memory.
I don't get all the hate, but maybe I'm just too undiscriminating.
I ask because to me the point of a mechanical keyboard is that you want more feedback/certainty on your keypress than an ordinary desktop keyboard gives.
If you don't notice the difference between a desktop keyboard and a laptop keyboard, then what does a mechanical keyboard add?
You're probably fine.