I still use V4 because I'm still HOT for V4 lol. 85% of my commissions use V4.

And for the following reasons-

1) Loading V4 characters on to my DAZ Studio scene Doesn't take forever. G3F takes 15 minutes to load, G8F takes 20 minutes to load. V4 takes under a minute to load. I have a beefy machine too. Nvidia 3080TI GPU, AMD Ryzen 9 5950X 16-Core Processor, 64 GB RAM. So I have no idea why Genesis figures have to take so long to become usable on the scene.

2) Like what the others say, I have a shedload of V4 content that I still love and collect.

This is how I render my V4 in a DAZ Studio Iray environment. No postwork...