Surging Sparks has some of the most recognizable chase cards of any set of the last few years, including Pikachu ex (238/191), one of the most recognizable modern Pikachu cards
Furthermore, his attacks offer more damage, and hit points have an extra 10 points
Multicolor decks need lands that can tap for any desired colored of mana, and some of the most expensive and popular cards in a deck or format are mana-fixing cards, such as the ten-card cycle of fetchlands, the ten shocklands and (most of all) the ten Alpha dual lands
If you have a card you believe is in mint condition and you plan to sell it or hold it as a long-term investment, then grading is almost always worth it
I appreciate the system that you have in place right now, because it shows players that you can modify your deck with other cards that you have, even though it should be common sense