What advantages might there be to having a factory that functioned more like a plant cell than like an animal cell?

For starters, a plant cell is able to produce its own glucose through the process of photosynthesis because the plant cell has chloroplasts that take in sunlight, carbon dioxide, and water and turn it into glucose and oxygen. Then, using the glucose, the plant cell is able to break down the glucose in the mitochondria mainly and produce fuel for the cell (adenosinetriphosphate/ATP). It's like having a self sufficient factory! Ya just need light, air, and water access and the factory doesn't need to take in any material like those animal cells. Silly silly heterotrophic animal cells, plants are autotrophs.
Also, plant cell has a cell wall instead of a soft cell membrane like the animal cell does. This provides structure and added protection to the factory. Think of a plant cell factory of more like a building while and animal cell factory a big gelatinous glob (but still solid, very flexible).
The other thing that comes to mind is that plant cells have much larger vacuoles. This means the factory would be able to store lots of goods! Only for the better.

For some odd reason, I had fun writing this. Hope I helped!!

Mantle convection  is the slow  creepingmotion of earth's solid silicate  mantle  caused by  convection  currents carrying  heat from the interior  to the planet's surface.[1][2]  the earth's surface  lithosphere, which rides atop the  asthenosphere  (the two components of the  upper mantle), is divided into a number of  plates  that are continuously being created and consumed at their opposite  plate boundaries. accretion occurs as mantle is added to the growing edges of a plate, associated with  seafloor spreading. this hot added material cools down by  conduction  and  convection  of heat. at the consumption edges of the plate, the material has thermally contracted to become dense, and it sinks under its own weight in the process of  subduction  usually at an  ocean trench.[3]this subducted material sinks through the earth's interior. some subducted material appears to reach the lower mantle,[4]  while in other regions, this material is impeded from sinking further, possibly due to a phase transition from  spinel  to  silicate perovskiteand  magnesiowustite, an  endothermic reaction.[5]the subducted oceanic crust triggers  volcanism, although the basic mechanisms are varied. volcanism may occur due to processes that add buoyancy to partially melted mantle causing an upward flow due to a decrease in density of the partial melt.secondary forms of convection that may result in surface volcanism are postulated to occur as a consequence of intraplate extension[6]  and  mantle plumes.[7]it is because the mantle can convect that the  tectonic plates  are able to move around the earth's surface.[8]mantle convection seems to have been much more active during the  hadean  period, resulting in gravitational sorting of heavier molten  iron, and  nickel  elements and  sulphides  in the core, and lighter  silicate minerals  in the  mantle.