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So offline you're paying $5 per pack, right? That would be the end goal in my opinion. Just shouldn't be more expensive than offline TCGs.

Yes, it would be more expensive than offline TCG however offline TCG's like Yugioh, don't have a "rare or higher each pack" promise. Heck, some of it is 1 rare for the ENTIRE BOX which means in this case, you have higher chance of getting back what you paid for (and more).

What? Ever since the existence of Yugioh, there was a guaranteed rare in a pack. Maybe this is something new that I'm not aware of, but I doubt it.

I'm a yugioh player for more than 10 years and no, it's nto guaranteed to have a rare in a pack. You can get all commons if your luck sucks or worse, you don't get any secret rares on one whole box.

I'm not going to link anything here, but just to be clear, you can search for Yugioh booster pack TCG and open any official info page and you will find this sentence.

Each main series Booster Pack is guaranteed a Rare, 7 Commons, and a ninth card which will either be another Common or a foil card (Super Rare rarity or higher).

I have some unopened packs that I'm so close to opening up just to prove you wrong but that would be a huge lol.
There is even another simple solution you can do. Go on youtube search ANY pack opening video and that's it, I don't think you will need more proof after that.

Also, for booster boxes it says this (on wiki):

If a customer buys a booster box of a pack that contains a Ghost Rare card, they have a 1/36 chance of getting one. The probability of getting {\displaystyle x} Ghost Rares in one box is {\displaystyle (1/36)^{x}}.
Boxes are cheaper per pack and per card than buying booster packs. A booster box of 24 booster packs...

While I didn't find any conclusive info for Secret rares, I'm sure they are maybe two times as likely to show up as Ghost rares. So yeah, there is a decent chance to not see a Secret rare in a box although there is almost always 1 (from my experience).

10 year bro? I mean, what have you been doing for those 10 years then? Not buying packs? xD Just teasing ya :P, but still, you are wrong.

There is other info suggesting there is a limited amount of commons in a pack but, as I said. The easiest way to confirm this is to watch a video of someone opening packs for half an hour xD.

Was hanging out yesterday with a friend that is still an active player so I asked him to clear this guaranteed rare thing for me. Funny enough he was going to open a whole box that day... so he did xD. Well, the result was, every pack a rare, and lucky son of a got 2 Secret rares. I'm not here to gloat, just to share some info :D