>>1681097thickness is a factor but it's not the be all and end all, fancier tubes could have a different rubber compound, a more consistent thickness, better seams etc, with thicker tubes you also lose out on suppleness and rolling resistance, and if you get just slightly more frequent punctures by using lower quality tubes you might not even save money or you save very little money compared to your other cycling-related expenses
see pic related, TPU inner tubes are claimed to be more resilient despite being lighter than butyl inner tubes, similar story with latex tubes
michelin airstop has the additional benefit of retaining air very well so that you don't have to pump up your tires as often, it's a great allrounder, supple and not very heavy but not so light that it becomes overly vulnerable to punctures, i've also heard good things about schwalbe inner tubes
