As mentioned, random I/O tends to fail, but the other tradeoff here is that fast microSD card slots tend to get extremely hot. Not necessarily "failure" hot (stuff like the ROG had issues from other parts), but uncomfortable to hold, depending on where the thing is going to go.
> As opposed to the user spending $40 for a 512GB sandisk extreme, and giving the phone maker no extra money.
The thing is, price anchoring is a thing, and people are going to look at a phone that costs $400 and needs a $40 Extra Thing and a $500 phone and go "the latter is easier".
Oh definitely. I would too. I dream of the price being only $200/TB.
The biggest storage upgrade for a normal iPhone is +384GB for $300 (Oof). If you upgrade to the Max model you can get +768GB for $400.
A Galaxy S23 can get +128GB for $60, a Galaxy S23+ can get +256GB for $120, and a Galaxy S23 Ultra can get +768GB for $420.
A Pixel 8 can get +128GB for $60, and a Pixel 8 Pro can get +896GB for $400.
If you include the price increase of better base models, to get access to bigger options, then $700/TB is a good ballpark figure.
I think this pricing is a little bit better than when I last looked, but it's still very bad.
The availability of >512GB is growing but still flaky and usually requires extra expensive base models. While in comparison microsd has had cheap 1TB for a good while, and 1.5TB for $150 becomes available later this month.