As someone who uses deposit bonuses ALL THE TIME. Honestly I'm probably an even money gambler to be honest but I make tons of money off of deposit bonuses.
Don't be afraid of the deposit bonuses just understand them. At my site its 5X the total amount deposited. So if I put in 500 they give me 100 I have to playthru 3000. The 3000 is deducted from the lesser amount of bet vs amount I can win. So If I make a 100 bet to win 50 only 50 is deducted from the 3K.
It's not a bad deal though. Personally heres how I do it. I get a 20% bonus every deposit. Usually I keep about 3-5 units in my account. so If I go on a 3 game losing streak I'm broke but the playthrough resets to 0. Then I deposit another 2 units and If I get hot I'll play thru the playthru amount in two days or less. So my money is never "stuck" in there.