No, I don't think it's right. Spell casters are generally charlatans who prey on vulnerable people, and then charge huge amounts of money for something which may or may not work. If it does, they get a handy case study and loads of money. If not, then they just blame the will of the Universe, or God's perfect timing, or something very wishy washy and vague, and still get loads of money. If you demand your money back, they have been known to threaten with blackmail.
I have heard of people using spell casters for things like revenge, which is a VERY BAD MOVE. It will only send out negative energy which will come back on you in time. If you have a desire, you can bring it into manifestation by focusing on it each day until it does actually manifest. It requires a bit of discipline and gentle persistence, but is far more effective and far less costly than using a spell-caster.
Are you talking about Wiccan Religious practices?
There is no reason to cast spells, all you have to do is Allow what you want...