The more experienced I get (ready older) the more i am sure you get what you pay for.

I have not gone to a carry on bike mini electric inflator...even if the GCN guys are fans...they like the Topeak but more for travel as it is similar size to a gauge. If I did get one I would stily carry a pump (I like the Silca Tattico)

I always carry a pump, recently I have started carrying C02 also, but have found I like the inflators that let you open slowly so you can inflate with control (portland design works is a good example)

I have a love/hate relationship with Co2. Going to an inflator that I can control moved that over to love And not stirring the pot but my TPU tubes say don't use C02 because of thermal shock, but not all makers call that out

For the shop i use a Milwaukee 18v inflator (got it for cars, works great with bikes) total extravagance but life saver with latex tubed tubulars