i moved recently and don't have a TV anymore so my excitement for this kinda dwindled. the 2TB price seems like a bit of a hard sell, but honestly i expected them to be even wilder given the circumstances. personally much more excited for the Steam Frame
I've been thinking about doing this exact thing too but prices for the BC250 have gone up like 50% in a few months. A lot of ebay listings are now people selling build kits with 3D printed cases and dubious power supplies bundled in for an even more inflated price.
Still significantly cheaper than a Steam Machine but if you're thinking about pulling the trigger on a BC250 you should do it relatively quick before Youtubers start making videos about the idea (again) and everything gets more expensive (again) lmao.