For most people the answer is no. However there are still a group of people who prefer a massive amount of storage on their device.
Personally I find 128 GB of storage to be far more than adequate but that's because even when traveling I find it sufficient. For home use I have about a terabyte of movies (mentioning movies because they're the usual main culprit for large size files) but rather than casting directly from my phone to my TV, I use the Plex app on my phone to link that movie collection from my PC to my TV via Chromecast. For out of home I do prefer my music collection to be on-device rather than streamed but it's not large enough that 128 GB can't handle MP3's that are roughly around 5mb per song and I also stream radio stations and podcasts from the Tunein Radio app.
The only circumstances I can imagine where someone would still want SD cards with them even with a 128 GB phone would be business. maybe they have several large video presentations, or maybe their business travel doesn't involve any entertaining distractions so they're stuck in the hotel for a week+ with nothing else to do and want a ton of movies with them. Also there are people who like to record a lot of video for leisure. Those videos can climb to pretty hefty sizes and I can surely see a 128 GB phone not having enough capacity for those people.
Which of these are you?
Personally I find 128 GB of storage to be far more than adequate but that's because even when traveling I find it sufficient. For home use I have about a terabyte of movies (mentioning movies because they're the usual main culprit for large size files) but rather than casting directly from my phone to my TV, I use the Plex app on my phone to link that movie collection from my PC to my TV via Chromecast. For out of home I do prefer my music collection to be on-device rather than streamed but it's not large enough that 128 GB can't handle MP3's that are roughly around 5mb per song and I also stream radio stations and podcasts from the Tunein Radio app.
The only circumstances I can imagine where someone would still want SD cards with them even with a 128 GB phone would be business. maybe they have several large video presentations, or maybe their business travel doesn't involve any entertaining distractions so they're stuck in the hotel for a week+ with nothing else to do and want a ton of movies with them. Also there are people who like to record a lot of video for leisure. Those videos can climb to pretty hefty sizes and I can surely see a 128 GB phone not having enough capacity for those people.
Which of these are you?