Super rare and rare cards can sell for anywhere from $20 to $100 each
Now back in the day, I had did SOME nominal research into the whole e-Reader features thing, but I honestly didnt feel all that gung-ho about it, especially since it wasnt all that popular back then
Youre looking at around $60 on TCGplayer to pick up a copy of Ghidora or $30 for Mothra or Biollante
You need a fast, honest read you can pull up mid-conversation: scan, confirm the print, read the live number, refresh it, save it
Chart shows the price of Pawmi #226 at the end of each month going back as long as we have tracked the item.
If you'd rather try to get more cards and chance pulling a Galvantula ex, though, try Stellar Crown boosters in bulk at Amazon or individually from the likes of Miniature Market.