

In Texas hold 'em, executing a slow play will definitely keep more players in the game while raising the stakes will probably intimidate players to fold. If you get high pocket cards, do you opt for a slow play or do you raise the stakes? Of course, the value of poker positions would come into play, but let's say you're under the gun, what would you do?
If your answer's a slow play and limp to the pot, more often than not, you'll discover that your cards won't improve after the flop. While the slow play does win poker pots, it doesn't really happen a lot. So, it may be a better choice to play your pocket aces as what they are (the best pocket cards ever!) and raise the bets.
A pocket pair (aces or otherwise) are high pockets because they already make a ranking poker hand. They have the potential to improve to two pairs, trips, a full house, or a four-of-a-kind after the flop and draw (the turn and river). But why would you want other players to stay on to see their own hands get better? Get rid of them while you still have the upper hand with your high pockets. And it's possible that those who do stay after your raise have a pocket pair of their own or are just thinking that you're playing a bluff to their own disadvantage.
If you opted to slow play and the flop doesn't improve your pair, you're in a tricky situation if other players raise the stakes. (And if there are more players in the game, you can be sure that it's likely to happen!) That means their hands developed after the three communal cards were shown. But yours is just a lousy pair in a game of better hands. You'll be better off folding rather than paying just to see the draw.
Get as many players to fold before the flop when you get high pocket cards in Texas hold 'em. This could mean just winning the blinds but if some players do stay, you'll be playing your poker hand with less competition. A pocket pair (aces or otherwise) is an excellent place to start, but is vulnerable after the flop. The slow play will work to keep more players in the game, but the chances of your pocket pair not improving is higher than they actually are.