Having new gadgets is great. Getting that massage is superb. Feasting on your cravings is awesome. I read in the Bible that "your heart is where your treasure is." My checkpoint is always asking myself if the act of acquiring or owning something will glorify God in any way. It's always best to be still in sudden prayer about such things. Joseph in the Bible ran away from the temptress luring him to commit sex, so in a way it's an act of sudden prayer. What's important is you do something about it in quiet prayer. Then and only then will real contentment will have meaning in all your daily dealings.
Matthew 6: 19-21
Don't store treasures for yourselves here on earth where moths and rust will destroy them and thieves can break in and steal them. But store your treasure in heaven where they cannot be destroyed by moths or rust and where thieves cannot break in and steal them. Your heart will be where your treasure is.