Do you think buying a weapon from the Market is bad form before you beat the game?

I'm on act 4 now for my first playthrough as a poison ranger and finally figured out the new trade system. I like it!

I wouldn't say i was struggling but bosses were like balanced dark souls fight, there was one that took about 10 minutes to kill and i barely had enough mana at the end of it.

I figured it was time for some upgrades since i mostly was using act 1 and 2 stuff, and a blue Zealot bow with physical damage hehe. I found some fun bow that was just 3 exalts that forked my damage and had 2 physical rune things on it(like 3rd highest dps at the time and had mana leech so why not hehe) and idk my dps like quad almost. the game is like easy now.

I'm left wondering if I'm not really exping the game the right way now. I had this debate too when i played Soul games, which poe now sort if is like. Like in Nioh you can build your character really op but you sort of don't learn the mechanics and stuff doing that. Then idk if someone watches your gameplay they are like why not do this, it'd make the game a lot easier. Of course I still have bad resistances so i get 1 shot still by so me mechanics.

It's a weird question, i felt okay about trading in the first game as the game felt balanced around that but idk some weapons and things might make some parts of the game too easy. idk. curious on some takes about that.