Should I Sell My Oppo 203?

Sell.

I sold my 205 last month after buying an Innuos Zen 3. Can burn them all to it except DVD.
Can't decide if I should keep the old CDs. Think I will box them and store. Then stopped
by a Goodwill and spotted an Oppo BDP 93 with remote for $18. Was very clean so I bought it. My only real GW find. 

If it were the 205 then I would say keep it because the audio is fantastic.  I have the 105 for my home theater and the 95 in a smaller system and I just use it for audio only.  Hard to find a CD player that sounds as good for the money, plus it plays SACD and DVD Audio discs.
The 203 is a great Blu Ray player (but doesn't have the audio capabilities of the 205), but if you really don't watch them anymore (or have a large collection of them) then I would say sell it while people are still offering good money for them.  That probably won't last, especially on the 203.

Thanks for the input, I sold it today

Ok, I sold the 203 last week for what seemed to be a ridiculously high price, but I found myself wanting the "option" to watch blurays even though I only own a few dvds (The Godfather trilogy and Great Beauty and Rick Steeves).  So, if I wanted a bluray player what do you recommend?