So first off I would just lay out that when you start paying into the 4-digit range it's no longer about just quality. You are buying into the hype and into the history of the makers. OTD is a great example of that.
If it is indeed history and hype you are after, OTD will be out of your price range. The corsa, 356 series and koala are more of the sought after OTD boards and aftermarket easily hit 3k. The OTD aesthetic is certainly not blingy, but if you just mean you want a metal board then you are in luck because all customs are pretty much machined alu or steel. You could go for The Cheat with your price range, but again the whole point is in the hype and The Cheat isn't really a hyped board.
The higher up you go in keyboards the more neutral everything tends to be. People pay high prices for vintage keycaps (beige sets like 3000sat) and older boards because they want to own keyboard history, not bling.
Some great GB's going on right now are the 7v which could fit your aesthetic of "bling" or the Prophet which is the first ever pin mount, another incentive if you are into the history of boards. The Iron165 will have extras available in the not so distant future so there's possibility there too. Personally, if there was one board I could have it would be the OTD 356CL but it doesn't really make sense unless you are a hardcore collector or lover of board history. Like mode said, it's diminishing returns at some point (imo $4-600 at gb price) so don't push yourself to dish out 1k, especially on aftermarket prices. I know the title was more theoretical, but just my two cents