New Cherry boards are cheaply made and are not that expensive to buy. They have thin keycaps, no plate, flexible cases, very little support for the PCB, laser printed legends, etc. The build quality and materials are fine (PBT keycaps, Cherry switches, Cherry stabilisers, good soldering, etc. ), just the design and chosen options make for a "cheap" keyboard.
For me, plate mount in metal case with modded switches is the best. Solid, precise, feels engineered and customised rather than cheap, made by machine and generic. Very premium.
A note about the sound of bottoming out switches. The slider of the switch hits the bottom casing, the keycaps and plate are not involved, so changing either keycaps or plate won't change the sound of bottoming out much (thick keycaps absorb some of the higher frequencies, though, and a plate may amplify certain frequencies of the sound whereas a PCB can dampen some). To improve the feel and sound of bottoming out you can either try adding orings or trampoline mod the switches (which requires opeining them to insert a piece of rubber in the little tube inside the switch). I love trampoline modded switches.
Also, some plates have cutouts that allow the switches to be opened without desoldering, but usually only offered on really custom boards, no commercial manufacturers sell board with these plates.