GPUs. Oh dear. My tale is relatively benign.
So two years ago I paid toppish euro for an assembled-by-vendor machine composed of parts I selected. For fumble-fingered reasons that are entirely my fault it had a GTX 1080 rather than a Ti, but never mind.
Feeling flush this year I paid an amount I won't mention here for an RTX 2080 and remembered to include the Ti bit this time. It's a big and heavy beast, but the provided bracket to support its weight wouldn't fit between the card and the internal drive cage.
End of the story is that this top-tier GPU (goes like greased owl shit, by the way) is supported by a shim made of folded card, clearly visible through the clear plastic "show off the RGB LEDs" panel in the side of the case...