Gasoline is — despite also being liquid [1] — much more cumbersome to store and get rid off again than tokens. With the freedom provided by technologies like atomic swaps, I don’t see why users wouldn’t hold onto their tokens for a while, assuming they enjoyed the product and thought it was going to be useful also in the future. In some sense, you implicitly become a “shareholder” in the products / services that you (plan to) use, and thus have reason to truly believe in. Keeping a bag of currencies is much harder with all the friction in the legacy fiat world. (Services like Transferwise and Revolut are are trying to address this.)
I can see a world in which my multi-coin wallet is denominated in a CPI-metric (e.g., weighted No. of Lambos and Rolex watches I can buy, or whatever). This assumes a world in which prices are available programatically and transparently. E.g., a native Blockchain world.
[1] Pun intended.
