I must admit that pair of Black Cat 'pro' bats made me giggle. Priced higher than most because they had been offered to, and rejected by several well known pros.
Think I said quite clearly recently somewhere that they weren't rejected, they were in fact very popular, but the players weren't going to play £300+.
Had you seen the bats in the flesh yourself and formed your opinion based on that, I'd accept it. You haven't, and have therefore you are talking complete rubbish.
Yes the area of pro/players bats is a grey area, I have sold 'standard' bats to professional players to sticker up. However the general consensus is that a pro/players bat is one that is very big for the weight, and one that 'pings' very well, but may not last as long. If you're seriously telling me there's no difference between these and a standard bat performance wise, then you must never have seen or played with one!
That said, my point on such bats is this: most people don't actually want one. You buy such a bat in full knowledge that it will go like an absolute rocket, but if you play a fair bit of cricket, it might last you a third or a half of a season. Not many people are happy with spending very good money on a bat that will last them 700 odd runs, and rightly so.