Think long and hard about how you want sleep patterns to be over a period of time.
If you are okay with him potentially becoming a full-time co-sleeper and bunking in bed with you and dad until the age of 2, 3, 4, 5, whatever then by all means, bring him into the bed with you. Know that for many (but not all) kids as they get older and older it may become more and more difficult to do what you've been doing without waking him up during the transition to bed. Are you ready to: every night lay down with him for 20 minutes (maybe more time as he gets older) in order for him to fall asleep? I'm not saying it is a 'wrong decision'; I'm just asking you to consider if this is a habit you're willing to nurture? It could possibly become a long-term commitment...how many mamasource posts do we see about "my kid won't sleep, he hates his bed, he won't stay in bed, we need to get him out of our bed"?
Our family could never, ever co-sleep. My husband is basically on-call 24 hours a day and sleeps with his pager in his hand. He MUST get sleep or he will be non-functional at his job (which would be unsafe not just for him but many, many other people). We also decided that it would be healthy for our child to fall asleep on his own and put himself back to sleep in the middle of the night through his own self-soothing, and by bringing him into the bed with us, we'd only be enabling him. To this day, I've only brought our child into the bed twice - once on vacation and once when he was really sick, and it was at 5:30 in the morning to try to encourage him to get at least an hour more of sleep.
You may wish to read "Healthy Sleep Habits, Happy Child" by Dr. Marc Weissbluth for other techniques on how to help your child. His books are based off of decades of infant/child sleep research. We implemented the techniques at 6 months and our child has slept and napped wonderfully ever since (and so have we!).