Wait....you got a 29er? As in a mountain bike? I thought you were eyeing road bikes?
I prefer to carry Co2 (2 of them) and have separate, fully stocked seat post bags for each of my bikes. It's more costly, but it means that I don't accidentally ride off without it. I'm new to MTBing, but DH always brings the floor pump in the car when he/we go. It came in handy last week, because he got a flat in the parking lot and didn't have to burn through any cartridges to repair it.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher