Availability follows the clock of the studio's audience. Evenings in the largest markets fill the popular tables, while early mornings leave them half empty and quicker to join. Studios open extra tables at busy hours, often with higher minimums. A table listed in the game lobby as open can still be full for seats, and the lobby usually shows the free seats and the length of the queue before the table opens.
Blackjack tables seat a fixed number of players, often seven, and a full table turns newcomers away. Many tables offer a bet behind, which lets a player wager on the hand of someone seated without making any decisions. The seated player keeps control of the hand, so a bet behind rides on choices the watcher cannot change. Some formats remove the seat limit entirely by letting every player share one common hand.
Table minimums matter more than they look, because live games move slowly and every round costs at least the minimum. A blackjack table with a high minimum and around sixty hands an hour turns a modest budget into a short session. Roulette and baccarat tables usually accept smaller stakes than blackjack, since they seat an unlimited number of players. Checking the minimum against the planned budget shows how many rounds a session can realistically last.