I buy quite a lot of eShop games... Not all of them are overpriced..
- Crimson Shroud
- The Denpa Men
- Gunman Clive
- Dillon's Rolling Western
- Liberation Maiden
- etc
Crimson Shroud is quite a good RPG, it has an interesting story and good OST, also has a dark theme and dices, which I enjoy quite a bit... The story is also somewhat lengthy, it'll give you more than 24 hours of playtime. It costs around 6€ or 8€, can't recall atm, but it's a really good price for what it is.
The Denpa Men is a silly rpg, it's quite fun albeit silly, you also invest quite a lot of time on it... It costs 8€
Gunman Clive is kinda like a simplified Megaman game, it's quite tricky and challenging, also quite fun. It costs only 2€.
Dillon's Rolling Western, well, it's kinda Tower Defence, albeit with some differences, mainly in that it's 3D and you run around the desert while fighting as well.
Liberation Maiden is a shooter, it has a really nice anime style, and personally, while I'm not a fan of these types of shooters, I quite enjoyed the game... It costs 8€ or such.
These are some of the games I enjoy that I purchased, there are many other games for 2€ that are really good as well, seeing as I spend 6€ when I go to McDonalds, I don't see how those games are over-priced, they last much longer than the burger. =3
And this is without mentioning the fact that most games are directly converted from dollars to euros, when 8$ is only 6€... Point is, they're even cheaper over there..