it will depend on what your goals are for the hobby. Leathercraft is like reloading. it allows the user to taylor make his own holsters, belts or whatever he wants to fit his needs. Shooting isnt a cheap hobby anymore either. your initial investment of 300ish for your single six is expensive now and trying to find inexpensive ammo isnt happening anymore either. if you want to shoot 22 Mags, then its more expensive. if all you want is a cheap holster, it appears you found one. btw, if you buy it, dont forget how much you paid for it when you get it home and see what your $30.00 bought. with the global economy and such, its not that difficult to find "cheap" products.
you can do the leatherwork inexpensively if you choose to do so. if you want to tool the leather then, you will have addtion time ($?) into the craft. i dont do any tooling, so its just plain jane stuff for me. i do have alot of $$ into the craft since i found its nice to have the right tools to do the right job. you could get away with less expensive tool or to make them yourself, but i dont have a shop at my disposal.
i have access to Oregon Leather so i can just drop in and buy some "scrap" pieces to make what i want. they have loads of "scrap" there and you should be able to find something that will work. I also have some hides that i have purchased a while ago, so i can use those to, but if im doing a quick holster/project and am not sure if its going to work out, i will use some scrap pieces.
also, any hobby will have an entry fee, its just the way the game is played. but once you have paid that price, you can do as you please. it can be an expensive hobby, but so are my others, but it allows me to spend some quite time and to do something i want to do when i want to do it at my own pace.