Never bought into HD-DVD. I had faith that I had picked the winner, the chosen one, once I had my PS3 in hand around launch... and I immediately began buying BD's at once.
What kind of sucked is that, for some studios, the HD-DVD was their golden child and had better encodes. It was just as common when going the other way to, so it wasn't a one-sided issue.
Worse, some of the early releases, at least on BD, were soft MPEG-2 releases, and/or had sloppier audio mixes or other flaws. I religiously followed highdefdigest.com for years - I still check from time to time when I want to determine which movies I feel are really worth owning and which are rentals (sometimes I don't care - if I think I will watch it more than once I usually just buy it). But I steered clear of a few movies I wanted early on, because of the bad encodes.
But hot damn, the early days of BD were pretty fantastic - they had hot sales all the time to try and encourage faster adoption. It was glorious.
Not that it's much different now, but pricing has just been brought closer in line with reality from the get go. Early BD prices were astronomical and outrageous more often than not; they can still be $10 more than DVD, which is a crime if you ask me, alas, the studios have never sought my input on the matter. If you get discs when they are fresh on the market (release week), the BD pricing is usually good, otherwise I just wait until I feel like I am ready to watch that movie and I shop around or wait until I notice a sale.