Raymond has a point. Valves (tubes) struggle with noise performance, so a simple valve design is inherently noisy, more complex ones less so. History holds up the view that valves have a particular sound that is perceived as nicer. Note, not better.
valves cost more, so the product has to offer better value for the money. So the valve containing products are often higher quality items offering bette construction, more facilities, and solid design. However, to my mind, these extra facilities are really not crucial to the function of a preamp, as in, creating gain with as low noise as possible. Things like impedance adjustment. It produces a tonal shift that is different applied to different source mics. When behringer tried to introduce a dirt cheap valve preamp it sort of became a bit of a pointless produce. A basic, no frills preamp that really seems to offer nothing. It has a worse performance than some of their own products or circuits in popular mixers, the valve itself is not the vital bit, it’s the other bits!