Since they were yours as a kid, I’d say put that binder back in storage and pull it back out in the future to show your son;)
But if you have to sell:
Maybe sell the 20.00+ ones individually with good pictures then the rest in a lot.
From what I am seeing, I notice some potential quality cards in your played set.
I can’t see the set number from the picture nor if it’s first edition, but my guess from how the collection looks like is that a good chunk is from starter decks / promos (video games or movie packs), which are relatively easier to find, unless you have a SDY or SDK 1st edition cards, but from the looks of it you don’t have those.
What I would do is one of these two options:
If you think yugioh is still at its infancy and believe in its potential to grow for collectibles, I would:
keep any first edition booster pack cards, and its unlimited counterparts to sell in the future, or simply collecting them because they really are the “wotc” part of the yugioh era (in regards they are the vintage series most collectors I know who collects, not that they are printed by wotc). From what I see, it’s:
Flame swordsman, if it’s the holo version LOB
Parasite Parasite
The blue eyes white dragons
Kazejin
Polymerization
Thousand Eyes Restrict (maybe not a booster pack card but pretty popular among collectors)
B. Skull Dragon
Red eyes B. Dragon
Dust Tornado
Exodia
Giant Trunade
Imperial Order
Time wizard
Some of the cards may be from booster packs but aren’t too memorable or valuable in the long run unless they are 1st edition in my opinion, so they should be sold.
If you don’t think yugioh will ever go too much in value, I would
Follow what gary said and sell the expensive ones individually, and sell the cheaper ones in a lot based on their set ID.
Also, some of the cards may change in value depending on their playability. Stuff like giant trunade and dust tornado may spike in prices depending on the ban list.
Grade the BEWDs, Exodia, Reb-eyes, B. Skull if they’re mint (PSA 9 worthy) and you’ll get more.
If
Most of this stuff is unlimited, I think nm 1st Decree goes for around $20, the tin red-eyes is around $30. Yu-Gi-Oh!'s unlimited print suffers from the same issues as base unlimited except nobody has bothered to grade it so there is a scarcity of graded cards for the early sets… but they’re still printing the unlimited print to this day. They’re not really that rare or collectible but you can definitely grade then and sell them to people who just don’t know how accessible they really are.
And just touching on what Ditto said about playability… Trunade is broken, they’ll never unban it and something like Dust Tornado is obsolete. A 1st Edition copy might not ever brake $30 because it’s not really a rare card or a card with huge demand.