Roulette has a low house advantage compared to other games. On a single-zero wheel, the house advantage is 2.7 per cent. Blackjack in contrast has a house advantage of 5.6 per cent - double that on roulette, as the casinos takes a bigger profit on blackjack.
The high payout odds for a winning number on roulette make it possible to quickly accumulate winnings. A winning number pays odds of 35/1 whereas blackjack only pays 2/1. By re-betting the winnings on roulette it is possible to win over £1000 in just two spins of a roulette wheel.