Nevertheless, Jesus told us how and what to pray. He prayed the prayer as an individual -- not in unison with anyone else. So my acceptance of His example is in line with Scripture.
Matthew 6:1-7, "Take heed that ye do not your alms before men, to be seen of them: otherwise ye have no reward of your Father which is in heaven. Therefore when thou doest thine alms, do not sound a trumpet before thee, as the hypocrites do in the synagogues and in the streets, that they may have glory of men. Verily I say unto you, They have their reward. But when thou doest alms, let not thy left hand know what thy right hand doeth: That thine alms may be in secret: and thy Father which seeth in secret himself shall reward thee openly. And when thou prayest, thou shalt not be as the hypocrites are: for they love to pray standing in the synagogues and in the corners of the streets, that they may be seen of men. Verily I say unto you, They have their reward. But thou, when thou prayest, enter into thy closet, and when thou hast shut thy door, pray to thy Father which is in secret; and thy Father which seeth in secret shall reward thee openly. But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking."
I'm not too sure Jesus could have made it more clear. We may think to ourselves that we can improve on His method or that He just didn't know what He was talking about but that's likely not a wise approach. (And note that Christ isn't interested in "vain repetitions").