As @teodoro explained more in detail, it can be much more premium and I think it will worth the increase in the price. Since it has front-back cooling approach and place for custom loops, a tool-less tempered glass panel would enhance the whole look of the system.Why slimmer? It will be less structurally rigid and more likely to warp and bend easier.
@PlayfulPhoenix also supporting atx power supply in the bottom would be a nice addition because I might like to run two titan rtx's in this case with showing the custom loop.I’m not sure if it’s feasible, but I think tool-less tempered glass panels look substantially more premium than a window. lian li's o11 dynamic mechanism doesn't seem like it would work, but maybe something like the fractal define r6's (which uses push pins on half) would. both of them have the frame for the mounting hardware on the inside of the glass panel, leaving the external side of the panel with a darkened edge and smooth appearance.
I'm a newbie for the sff.n but I've been following the projects for years and this is the project that made me join the forum and comment on, I will be looking for the production!