Ha! Yes, you should have got an Oppo. No, honestly, they're really much of a muchness. If you need SACD, DVD-A, fast operation and multi-region, then the Oppo is your man. If that's less important that you don't need it. Same performance as your Pioneer I wouldn't doubt.

There's a good chance that the Bluray of matrix just doesn't have that great a High Def soundtrack transfer. If you're listening to the DVD through a very high end M system, then chances are it's already giving you an awesome presentation. Maybe the Bluray will give you 5% more resolution but in a film that noisy, it's probably harder to notice. Try some other material and report back. I found that with very good electronics, it's astonishing what they can extract from plain old Dolby Digital. Your choice of player shouldn't make too much difference at this level.

Office: Meridian 500.1, 568.2mm, 557, 505, Dali Helicon 800 L/R and C200 Mk2 Centre, BK Monolith FF cool
Cinema: Valerion Visionmaster Pro 2, Arcam AVR31, KEF LS50 Meta LR, T300c, Focal Dome On-Walls, PMC Twenty.Sub
Bedrooms: Meridian 2x M80