The trick with the different promotional schemes is to read and understand the terms and conditions completely.  Each site has different conditions, so its important to read them each time.  Generally, I try to avoid match bonuses because of the seemingly impossible playthru requirements....If I win big, I want to cash out the entire win, but with the match bonuses there are often times limits....READ THE TERMS AND CONDITIONS OF EACH OFFER CAREFULLY before committing your money.