Well.I see heaps of articles of people buying a Charizard for 80 Dollars and
taht US that over 120 bucks here is Aus where my friend got a Charizard and a
Gyarodos for 20 Aussie dollars. Just a note I'm asian living in Australia. ARE
you guys rich there or something? you pay so much money for cards for boosters
and all and we get boosters cheaper here than there in the U.S but its more
popular there than here but here is very popular. Anyways here;s a Pokemon I
reckon  is overlooked is...
 
Psyduck
Basic Pokemon, common 50hp for a basic Pokemon,weakness too lightning.
Attacks:
Attack:      [P]  Headache
             Your opponent can't play Trainer cards during his or her next
turn.
Attack:      [W]  Fury Swipes  (10x)
             Flip 3 coins.  This attack does 10 damage times the number of
             heads.
 
This is one Pokemon that is overlooked and I reckon is alright, not the best
pokemon but the only pokemon that has 2 different color's needed to use an
attack Psy and water, Fury Swipes is great relies on luck but can do most of 30
damage with one energy..and 50hp is great for a basic.