Hey all, wondering if anyone out there know's any decent retro gaming stores, where I may be able to buy an old 3do or sega saturn or sega dreamcast console?

Or if anyone out there is selling one, let me know how much and details etc. Any help would be greatly appreciated.

I have already tried places like ebay, gumtree, gametraders to no success as people want an arm and a leg for what they want to sell.