You have a good point, they may have lived like that in anticipation of his second coming especially after Christ's message in Matthew 24
However, Jesus himself lived that way. There were women in his ministry who sold their possessions to fund it. He also taught people to not acquire material possessions but to sell them off and distribute to the poor. Perhaps, his ideal model of a Christian society was one where material wealth was evenly distributed among all, with none being richer than the other. He also taught people the secret of multiplication in the Kingdom of God, which was to 'give'.
If people sold off what they owned and gave to others, it might be the secret to financial multiplication (God's way), Luke 6:38,
(New International Version)
"Give, and it will be given to you. A good measure, pressed down, shaken together and running over, will be poured into your lap. For with the measure you use, it will be measured to you."