lol yes, touch-up sticks have roughly the same price of a tamiya spray can, and for some colors, the spray can is probably the way to go.
On the other hand, if you want that really original, non reproduced color, like say, BMW Glacier green metallic, then a touch-up stick is a good idea.
Off course, I have the luck of living quite close to a lot of offical car dealers here in Rotterdam. Within 3 km ( 2 miles ), I can find dealers for Alfa Romeo, Audi, BMW, Citroen, Chevrolet, Daihatsu, Fiat, Ford, Honda, Hyundai, Mitsubishi, MG, Nissan, Opel, Peugeot, Renault, Rover, Saab, Skoda, Subaru, Suzuki, Toyota, Volkswagen and Volvo :-) :-) :-) :-) :-) :-) :-) :-)
Come to think about it.. It's easier to get a touch-up stick here in Rotterdam than a can of Tamiya spray paint ( only knows 4 model building stores, and one of them doesn't even carry spray paint lol )