Do you still play Heroes of Might and Magic III after the release of Heroes of Might and Magic V?

That's exactly the point – it's just your opinion, and unfortunately, it's incorrect.

Quite the contrary... I, for example, am a fan of the fourth installment... and this is purely my personal opinion... I'm not saying it's right or wrong, but I think that's how it is.
Of course, the fifth game has better graphics and some other improvements, but the best elements were taken from the fourth game.