I think i probably wont mind, even more so if Sony release it this year. I am not a fan of MS's range of games (they don't seem particularly innovative or have depth to their game catalogue). So though a stronger console would be good in one part of my brain, I just don't think I can justify it for just 3rd party games. Though I knew quite few people who purchased a PS4 because it was more powerful, but then the cost was right. So it will be very interesting to see if people are really that bothered by power or just want to upgrade at a reasonable price.
The only downside is those people who'll constantly talk about gigaflops and all that jazz, hidden sauce and cloud... so in one mind I hope sony release a more powerful console to shut the expected return of those people who have been quite for a few years now :D