Advice Please: Worth Upgrading the Oppo BDP-83?

[Shozuki]

I have an Oppo BDP-83 and an Onkyo 807 Reciever.

I've decided to upgrade the reciever to a Pioneer SC-LX82. Upon getting ready to do that - is it worth me upgrading my Blu-Ray player too?

I was thinking of getting a Pioneer BDP-LX91, but before I take the plunge is it really worth it?

Thanks