I will watch solos occasionally. But I rarely fap to any of them. I see them more as an appetizer. Then I’ll usually switch over to a B/G for the main course.
The exception being if the actress will only do solos. Someone like Chloe Toy for example. In her case, she’s so beautiful, I will take whatever I can get.
If a B/G isn’t possible, I think I prefer simulated sex for my solo videos. With a Tommy Torso, etc…Rather than the actress masturbating or using a toy on herself. Plenty of dirty talking (JOI,JOE) also helps.
I also enjoy the actress interacting with the viewer. Seducing, teasing, etc…Rather than a strictly voyeur view of her masturbating. Where you’re not really part of the scene.
Just my take.