I have played in tournaments for 15 years.
Personally find them much better for me as I have shown a long term profit, whereas in LIVE action I am down lifetime.
Remember, a NO LIMIT HOLD'EM tournament will have a completely different strategy then a LIVE STRUCTURED game because one, it is NO LIMIT and two, it is a tournament.
But for you personally and others, one of the biggest advantages you will have if you shop for the right tournament versuses live play is the less house advantage.
A normal live game may have as much as a 10% rake from the pot, which is HUGE to overcome unless you are a VERY talented player.
On the other hand, it is not uncommon where you can find tournamets with only a 5% take of the entry fees and sometimes find them with 100% payback and MORE!! This fact alone should set you out and about to look for these tournaments.
GOOD LUCK