I think that you should be able to store pixels in your Spaceship Locker or Chests that way you can build up a decent amount and go to a village and buy whatever you want.
I'm totally okay with this, pixels are a ressource you need for almost everything, it would be great to have the possibility to store them somewhere, or at least having the ability to recover the lost pixels after death by returning where you died (Terraria style). In the current situations, you are quickly in a situation where you have all the materials for crafting the stuff you need but pixels because you died while farming... pixels.
I Cannot agree more, but maybe thats how it is? They're bound to your character till death? Adds a theme.
Later in the game you get a refinery to turn ore into pixel. Maybe add an option to anti-refine and turn pixel into ore? That way you can store those precious pixels at a lass (Say it cost 20% more pixel per ore)