Years ago Intel made a microscope that had a USB connection. At the time Intel discontinued making them in 2002; these things were selling for under $70.
This supposed “toy” was cool because not only could you view objects for 10X, 60X and 200X, but you could light the objects from above or below the slide. You could simply view the object on your computer or you could use the device to take still photos, or 15 frames per second moving pictures.
You can still find this scope for sale on the internet for under $100, but I’m not sure if it is Vista compatible. There are others you can buy with higher resolution for Vista that now cost around $350, though none at that price go beyond 200X. Things start getting really cool above 200X.
Just seeing how far things have come with computer I/O devices in the past 20 years makes me hope I’m still around 20 years from now to see what will come up next.