I don’t think so. The K series is a budget tier, if you want the sound benefit of aluminum I would go full CNC aluminum. Then if you decide on a board there will be guides or sound test videos on various mods and you can decide what will make it sound best.

Keychron K series are quite cheap in my opinion, but only compared to more premium entry level custom stuff like the Q1, Akko Mod 7, or other aluminum offerings from companies like Novelkeys or KBDFans. The aluminum frame is very thin and the bottom is still plastic so it doesn't sound great, and modding did not have much of an effect in my experience (I picked up a K4 about a year ago, tried adding tempest mod, switch pad foam and case foam and it still sounds IMO too loud and just kinda nondescript). It is a good starter board to help figure out what you like though. I generally recommend prebuilt Ducky Ones as peoples' first boards in to the hobby, if they're not sure what they want.

Have been replaying SC1 and BW remastered, love those games. Forgot how the difficulty was all over the place though.

I know Francis has been fairly active on FPGeeks and various other forums continually posting updates to the effect of "they are planning to re-open soon" (most recently here). From this it sounds like their parent company was acquired either shortly before or shortly after the start of the pandemic, but they still retain the rights to produce pens (at the discretion of parent company's parent company...). Notably they were due to restart production "soon"^TM but only limited models and configs with no customization. Seemed reasonable.

BUT! Actually in the course of looking this up I just came across this thread - looks like they are manufacturing pens again but possibly only this one model.

Same, but these days mostly Conid. Wish they would open up requests ever again so I could get a Kingsize.

This is like having a poll that says

How do you use your fountain pen?

• Calligraphy

• Professional art

• Art as a hobby

• Journaling

Like... it is still just a pen, you use it for anything you use a pen for, none of these things are a reason to get in to keyboards specifically, just more customization and flair, more fun to use for any or all of the above.

Then, back to the question, what are you actually hoping to get that is different from what you have?

Is there something else you want to try? New switches/form factor? Or do you just want to try switching caps and see if that does it for you?