Its worth noting that if you plan to do a lot of back-and-forth trading, perhaps through Cardsphere or Deckbox, youll be receiving toploaders from other traders some amount of the time, so you dont need to buy them quite as often as you would if you were only selling cards

Rime #35Rare $0.26 Remoraid #36Common $0.15 Octillery #37Holo Rare $0.26 Corphish #38Common $0.09 Crawdaunt #39Uncommon $0.07 Empoleon V #40Ultra Rare $0.77 Frillish #41Common $0.14 Jellicent #42Rare $0.40 Bruxish #43Uncommon $0.12 Electabuzz #44Common $0.12 Electivire #45Rare $0.20 Shinx #46Common $0.18 Luxio #47Uncommon $0.16 Luxray #48Holo Rare $0.37 Pachirisu #49Common $0.08 Tapu Koko V #50Ultra Rare $0.77 Tapu Koko VMAX #51Ultra Rare $1.64 Yamper #52Common $0.10 Boltund #53Rare $0.19 Galarian Slowpoke #54Common $0.23 Spoink #55Common $0.10 Grumpig #56Uncommon $0.17 Baltoy #57Common $0.08 Claydol #58Rare $0.23 Chimecho #59Common $0.13 Espurr #60Common $0.22 Tyranitar V (Alternate Full Art) #155Ultra Rare $271.50 Rapid Strike Urshifu VMAX (Alternate Art Secret) #170Secret Rare $77.94 Empoleon V (Alternate Full Art) #146Ultra Rare $72.08 Mimikyu V (Full Art) #148Ultra Rare $54.02 Single Strike Urshifu VMAX (Alternate Art Secret) #168Secret Rare $32.07 Houndoom (Secret) #179Secret Rare $25.63 Victini VMAX (Secret) #165Secret Rare $20.69 Rapid Strike Urshifu V (Alternate Full Art) #153Ultra Rare $19.47 Single Strike Urshifu V (Alternate Full Art) #151Ultra Rare $18.96 Phoebe (Full Art) #161Ultra Rare $15.29

In the pure creature ramp decks you can often have 7 mana and not even see a 4th land for some time
Mew EX SAR ($120+) Now putting trainer cards aside and getting to more Pokemon related cards, one of the most wanted cards in the set features Mew, the Pokemon also on the booster box
GameStop's loyalty program sometimes gives early access to pre-orders
Join forces with newly discovered Pokmon like Bloodmoon Ursaluna ex and Sinistcha ex