my simplistic summary of Pioneer's DVD/BD players: their Universal DVD players of old are different beasts to their latter-day BDPS. their DVD players were mostly excellent, made in-house, i have one still going strong, I recommend them.. however, around 3 or 4 years ago Pio shut down their plant and started flogging re-badged SHARP BDP's and even to this day, despite them being found out and stopping the practice of touting crappy Sharp players as ther own, their BDPs are still just terrible, unreliable heaps of crap, with the most abysmal buggy firmware. same goes for Yamaha BDP's - avoid.
I have this BDP:
http://www.cambridgeaudio.com/products/azur-651bd-universal-blu-ray-player
Practically an Oppo BDP-93 clone.. but CA maintain it has a better engineered/dampened chassis and improved DACs.. Wot-ev-urr..!?
I got it because I could buy it from a physical shop (Richer Sounds) as opposed to Oppo which is sold online only and in a few dealers here.. and it was the cheapest way of getting BOTH HDMI and 7.1 Analogue outs in a reliable package.. (Hence you wouldn't have to upgrade your AV Receiver, as it decodes every format - SACD/DVDA/DTS/DD/HDCD/Dolby True HD/DTS Master Audio/DTS HD., you name it.)
..And you know what..
I LOVE IT! It's a wonderful bit of kit! I've not had one seconds trouble out of it (unlike my previous Yamaha BDP.. DRECK!) and the C.A. plays absolutely everything I throw at it! Well apart from my Laserdiscs! They have a tough time getting in the tiny drawers! Matron! :yikes
as for DVD-A, I feel it didn't take off initially because at the time it first launched there weren't any DVD-A players! Or at least affordable ones! The fact it was a kind of DVD didn't help because the added benefits (Advanced Resolution sound, on-screen lyrics, etc) did not work on ALL DVD players but only specifically DVD-Audio machines, more expensive/hard to get at the time. I had to wait years to hear my DVD-A's in anything but Dolby or DTS! Oh and Sony's SACD bungs put the knife well and truly in the format.. blah blah! But that's another story!