The difference is the time and skill required to do the original mesh.

Take Dawn for instance, someone has taken the time to do all that work.

I come along with Zbrush and make a bodysuit for her in 5 minutes doing the masking tools routine.

Not as easy as a 5 minute job to take a lores base suit and make it into something that fits Dawn.

All the best.

Great Uncle LROG

Who honors those we love for the very life we live?, Who sends monsters to kill us?, and at the same time sings that we will never die., Who teaches us whats real?, and how to laugh at lies?, Who decides why we live and what we'll die to defend?, Who chains us?, and Who holds the key that can set us free... It's You!, You have all the weapons you need., Now Fight!