You wouldn't even see that tiny difference in games, because your integrated graphics would hit their limit before either of those CPUs. And when you compress a video or a CD the bottleneck would be your HDD, so again the two CPUs would finish the same job in the same time.
If the factor of socket compatibilities isn't an issue, then no, it was not a good deal. For 155, you could have gotten a much better processor. On the other hand, getting a better processor would require a motherboard switch which would only add to your total cost. It really depends on your perspective.