Very sturdy keyboard needed

So I need some recommendations on some really good, preferably macroable/gaming keyboards, with the #1 feature being sturdy!

I owned a G15 for years without issue, until the spacebar gave way. Then I bought a... oh what was it.. maybe a G19? It had the color LCD panel on it, but anyway, after just 1 year the space bar gave out and I couldn't get it fixed. I bought a G510 - which has lasted about 2 years, but same issue - the space bar gave out and a lot of my keys are smudging off (picture related). I have a G510S still in box new as a gift which I'll probably use as soon as I cant bear with this spacebar anymore.

Basically, I am a very fast but unusual typist. I'm a "rough typer". I dont hit my keyboard, but sometimes I'll pop the enter key, or really smack the spacebar with my thumb. I press on the right side of the space bar like 99% of the time as you can see in the picture, its totally worn out. Spacebars are always the issue for me though.

I might not go logitech anymore - their spacebars seem to suck, but I like how well they macro. I just want something really sturdy, especially around the space bar. Any recommendations?

Thank you all for all the feedback. Once I get sick of this spacebar issue on this G510 I'm going to use my gifted G510S and then once that goes to shit in a year or less probably, you all have convinced me to use some level of combination of a mechanical (eg: IBM M Model clone) with a macro device like lanx linked.

I use the macro on the keyboard for both business and gaming, and find it built into the kb a convenience which is why I simply said gaming keyboard. But I think the way I type, I simply am going to have to use mechanical. I do remember the feel of the IBM M keyboards, and they were amazing, so that's the route I'll go.

Thanks again for all the insight!