I have had a Blackburn frame pump, a Topeak Road Morph and now an Innovations Air Chuck SL. I I like the Topeak Road Morph much more than the Blackburn frame pump. I find it much easier to get the tire up to pressure and the Road Morph as a gauge. However, I will never go back to a pump. The Air Chuck SL and 4 threaded 16 gram cartridges weigh about the same as the Road Morph. I have never had even two flats in a day let alone four flats.
I carry the Air Chuck, two tubes, three cartridges, patch kit, a tire boot and one lever. I can get the threaded 16 gram cartridges for about $1.50 each delivered and this is cheap enough for me. The 12 gram un-threaded cartridges will not give you enough air volume to fill up a road tire to 120 psi.