Uhm...compare making a high-quality handgun by hand, from raw metals,
compared to buying one at your local gunshop. Now consider that a blaster
is an order of magnitude more complex, yet has to endure the same harsh
working conditions without it's frammistat going out of phase or it's
hydrowidgets decoupling or whatever. Almost all the tools and equipment we
use today can only be made affordably if they're being made by huge
factories producing thousands at a time.
A sword, or a piece of armor, on the other hand, CAN be made by a single
craftsman. Indeed, guns didn't totally replace swords until the concept of
mass production and interchangeable parts caught on in the late 1700s.
IIRC, a Jedi makes his own lightsaber -- and it's a gruelling process that
signals the culmination of their training.
As regards the genre -- no one in SW makes stuff. REPAIRS stuff, or ALTERS
stuff, yes. One exception -- Anakin Skywalker, who built a pod racer and a
protocol droid, but he was the Chosen One, so he gets special breaks.
