I'm not trying to state my opinion as fact, so I apologize if I come across that way.
I bought the V55's when they were fairly new and paid £75 for them. But even then, I thought it was a bargain at that price.
I should also note that the V55's still retail at around £100 in many UK stores. Well worth the £40 that amazon are asking for them.
I'd take them over the beat solo & pros everytime. (Can't comment on the studios as i've never tested them, although they seem to get a bigger negative reception than the solos and pros).
No worries man, I have never really enjoyed a lot of sonys but many people do supose it just depends on what sound signature we are used to. If you didn't enjoy the pros you would hate the studios there awful for the price if you have heard the v moda crossfade lp they sound similar to them maybe a tad better in some areas. I hate the solo and studio they have too much bass with bleads a lot. Here in the UK we have so many competetive headphones at the 100-150 mark that the beats can sound terrible to some of them.