Since I used to play the TCG a lot and occasionally still do (on TCGone), I thought it would be fun to try and come up with some deck lists that try to include as many expensive cards as possible but still make some sense game-wise and follow the basic rules of deck building. Here is my first attempt:
3 Charmander (Base Set 1st Edition)
1 Charmander (Best Photo Contest)
2 Charmeleon (Web)
4 Charizard (Base Set 1st Edition)
4 Kangaskhan (Trophy)
2 Magikarp (University Promo)
2 Exeggutor (Bilingual, non-glossy)
2 Eevee (Fan Club Promo)
2 Porygon (Fan Club Promo)
3 Lugia (Neo Genesis 1st Edition)
1 Shining Charizard (Neo Destiny 1st edition)
1 Rayquaza Gold Star
1 Pokémon Breeder (Base Set 1st Edition)
2 Pokémon Breeder (Legendary Collection Reverse Holo)
4 TV Reporter (Ex Dragon Reverse Holo)
3 Computer Error (Japanese Promo, non-glossy)
2 Super Energy Retrieval (Neo Genesis 1st Edition)
7 Lightning Energy (Emerald)
7 Water Energy (Emerald)
7 Fire Energy (Emerald)
Looking forward to seing more ideas!