Do you already have speakers for your TV? I say go with the best speakers for the TV if you use that more.
For me, I have a receiver, so I hook ALL my stuff up to it.
But if I listen to music and play games the most, so I would hook my best stuff up to my computer. (given I did not have my receiver)
If the speakers are new and you already have decent TV speakesr, then you could sell em. You could get aroudn 300 for them last time I checked.