Well not really, I hated doing it. The issue being if you had 30 kits of a certain model on the shelves priced up at a £10.00 and then the Manufacturing company upped their prices for 20p then all the old stock would have to be repriced up. This was a regular thing. A right pain in the hole, Especially when you are in the shop yourself.
Best thing is a cabinet with stuff on show and a price against the item itself, not easy with smaller items though.