Staining Glass?

does anyone know what the visual difference is between using magic paint to paint on glass and actually using a kiln with the particle glass as the decorationing?
Im trying to save a few hundred bucks the cost of the kiln for a new hobby my wife really wants to try.
Try as in just a passing fancy not worth the 800 investment she wants for a kiln she will use for a mere one or two months.
Im trying to get away with the magic paint thing.
Anyone have any knowledge on this?

Just wanting to know if there is a significant difference in the final outcome of the two.

Greatly appreciate your time