I'm torn on this. In some part I think they should just be collectible furnishings and the ToT table should be a purchasable achievement furnishing. However, I also feel like it's not the worst thing in the world for people to receive multiple copies for their achievement each season. I have no desire myself to fill a house/room with a bunch of Rubedite trophies, but I also wouldn't want to remove that option from other players, I guess.

Perhaps a reasonable compromise would be adding an achievement/furnishing vendor to the Gonfalon Bay Roister's Club that sells copies of these various furnishings, but an account would be limited in the number of times they can purchase the trophies based on how many times they've satisfied the requirements? So each time I reach Rubedite in a season it'll add the ability for me to purchase another copy of the trophy from the vendor, but the furnishing is not available for purchase again until that time?