I imagine this one would help make up for some of the bad experiences people have had with mini toucha. http://hojotea.com/item_e/d03e.htm
I'm just not a mini toucha kinda guy because it seems there are much better deals to be had by buying cakes, not to mention aging those things might be sketchy
While I've never bought from Hojo, in Japan it's all about marketing. Japanese people have mastered the art of marketing even the cheapest products at the highest prices thanks to pretty packaging, service and fancy marketing material, so I doubt their tuo cha is miles better than other tuo cha of reasonable quality. Pretty pictures that have little to do with reality and a good marketing text is most likely the whole difference.
I used to be a tuo cha drinker because my regular choice had a good cha qi (something that most people wouldn't associate with cheap tuos), but taste wise it was everything but special.
If you want real pu without committing to whole cakes, I highly recommend buying a bunch of samples from Yunnan Sourcing.
There is a pretty good consensus regarding brewing times and the amount of pu needed, so you won't need a whole cake to see if a pu is to your liking. Even a 10g sample will mostly do just fine, unless you got a bad piece of the cake (but then it's not a great cake to begin with anyway).