Sorry but one +1 bonus is exactly worth as much as any other +1 bonus.
And in 5th edition you quickly reach the stage where you easily hit most foes, especially if you're good at minmaxing. (Note the edition was built that way and I'm not complaining).
I'm just saying that there is nothing special about going from +1 to +2.
In contrast, the difference between a non-magical axe and a +1 Axe or even a "+0 Axe" (some magical weapons do not give a plus bonus but still count as magical) is HUGE, since so very many monsters have resistance to non-magical blunt, slash and pierce damage.
No, you are mistaken. ANY plus from magic items is a huge bonus in a system where the monsters are not designed around those pluses. You're right, the PC's are easily hitting most foes without magic.
That's the point of bounded accuracy. You don't need magic items to hit the bad guys.
But, if you have plussed items (and possibly other plussed stuff that stacks like stat bonus items), then you are going to hit that much more often, and get to do extra damage. Which then makes things like those +5/-10 feats just that much more effective.
In a system where the maximum bonus your character is ever going to see outside of magic is about +12 (ish) to hit, adding +1 or +2 from magic is HUGE. Compared to 3e/3.5 where that bonus is pretty much an after thought compared to your BAB for the most part.
In 5th edition, many gamers have concluded that all the damage reduction in the MM is mostly just fluff, since it is so easy to get hold of a magic weapon (even with zero shoppes!).
Again, you keep speaking for "many" gamers. How do you know this? in 3 campaigns, 24 levels of play, I have not found a SINGLE magic weapon for my three PC's. Not one. My fighter inherited a magic sword from another dead PC, my Ranger in Ravenloft went 8 levels and never did find a magic bow, and my cleric in Storm King's Thunder is now 6th level and has no magic weapons.
So, it certainly has not been my experience.
BINGO!
But seriously, have you even once considered that a group of players might not be interested in building churches or creating thieves guilds or donating money to orphanages...?
It would be nice if this edition continued supporting the playstyle where you spend gold on magical upgrades, instead of offering downtime as the ONLY gold outlet.
Hang on, you've shifted the goal posts. You went from Utility based pricing for magic items, which the game has never had in any edition, to simply being able to spend gold on magical upgrades. Well, if all you want is to be able to spend gold on magic upgrades, the rules are right there. You might not like the pricing, and that's fine, but, the rules ARE right there.
And, again, since you ignore it the first time around, how are you going to account for the idea that you turn gold into direct PC power in a game which does not presume ANY magic items? You are asking for a complete rewrite of the game from the ground up on the DM's side. EVERY monster has to be rewritten since bounded accuracy is now completely shot to hell if you allow the players to use the DMG like an Amazon.com listing.
Which spins back around to "D&D on easy mode" complaints that are fairly common.
I do kinda wonder if there isn't some correlation between folks complaining about how easy D&D is and folks who see magic items as standard power ups.