You should really have 1 address per UTxO for privacy reasons.
Most of my UTxOs are over 1m sats & I'm not worried about my smaller UTxOs. I imagine their purchasing power will increase dramatically over the next few years. It's good to have a selection of UTxOs to choose from.
We have no address shortage but the number of UTxOs possible is limited. These ordinal guys created so many additional UTxOs that Pi nodes now struggle to sync.