newbs will never respect the polini kit, properly set up its the best puch kit there is max.
also moped parts are on the whole under priced due to relatively recent changes in the retail market. If you look at any other motorsport parts are significantly more expensive. the moped parts biz is a bad one to be in.
polini kits that are actually made in italy can't be manufactured and sold for much less, unlike chinese made stuff like dmp, k/star, etc. The polini kit doesn't cut corners like most other kits it has a designated piston design that comes in 4 sizes, innovative porting that was developed specifically for the e50 style motors and mopeds, and comes with the intake and reeds. Most other kits use pistons and additional parts sourced from other lower quality manufacturers to save costs meaning they are never truly designed for that cylinder, its compromise that works but is not optimal for performance often but usually more reliable if not properly setup and run.
I wish more companies would produce moped ktis of this caliber.