Bonus terms are essentially a mathematical challenge designed to ensure the operator retains a house edge regardless of the promotional cash involved. The most important thing is to read the fine print regarding which games count toward the goal; usually, table games and live dealers contribute only a tiny fraction, if anything at all. I personally prefer offers with lower matching percentages because they almost always come with much more realistic rollover multipliers. Chasing a huge bonus amount is often a trap, as the strict time limits force you to play faster and make riskier bets than you would normally choose.