I will never be selling my HDDVDs, I think most of my discs still look fantastic and there are several movies I watch regularly (Scanner Darkly, Clerks II, Equilibrium, Balls of Fury, Timecop). Certain titles still don't have viable options on bluray in my country. Balls of Fury is one title that isn't even on bluray yet from Universal even after all these years. Equilibrium (Japanese version) looks better than most of the bluray releases (except the Japanese bluray) which have the wrong aspect ratios. Twilight Zone: The Movie is hard to find on either format and will probably never be re-released. The Genius label discs like Harsh Times, Clerks II, Matador, besides being awesome movies, are all out of print on Bluray so those discs are definitely worth keeping around, who knows if they will ever be re-released (Weinstein Co sold). The German HDDVD of Resident Evil Apocolypse has a superior mastering than the official Sony bluray release. Terminator 2 (German Steelbook) looks better than my Lionsgate bluray and is my preferred way to watch the Director's cut. The Thing on HDDVD actually has a unique orange color grading in HD (how it always looked on home video) that the Shout Factory Bluray changed blue and that the Arrow Video bluray slightly changed blue, the HDDVD also has less tampering to the master than Universal's own bluray. I have two backup players in the closet if one ever dies, and I regularly use my HDDVD player for normal DVDs also. The format is definitely worth keeping around and may even be worth it for someone to pick up a decent sized collection dirt cheap. As long as you weed out your bad Warner discs and stay cautious of picking those up without vetting them, a HDDVD collection can be relevant for as long as you want, as the format had a bunch of timeless movies dropped on it in the years it was around.