Secondly, its the complexity of the card
The downside is that even though it doesnt have a once per turn restriction, you dont generally have enough LP to spare 2 activations on the first turn, so that extra card advantage may not be fully usable
SR Super Rare Forbidden Forbidden Appointer of the Red Lotus X TRAP Pay 2000 LP and reveal your entire hand
Surge was compatible with the mighty Pikachu ex, then things would be different, as he would make for a great setter, but limiting him to three other Electric types means that hes super situational
As always card prices, they will likely fluctuate as time goes on, increasing or decreasing based on demand and availability.
Well put them through our usual array of tests to find out What are Pokemon card sleeves