@Brunnis said in No Raspberry Pi 4 in 2019.:
I'll be getting the 2GB version. I just don't see the point in getting the 4GB version unless you're going to run desktop type workloads or know, specifically, that your workload is memory intensive.
More RAM is also useful for speeding up repeated hdd/ssd/sd access, since Linux uses unused RAM for buffering the file system. You can see this via the command free -h ("h" means "human readable" for more human-friendly numbers). Example from my Laptop:
total used free shared buff/cache available
Mem: 7,7G 2,2G 2,5G 405M 2,9G 4,8G
Although the "free" memory seems to be only 2.5 GB, temporary buffers take 2.9 GB. The real amount of free RAM is 4.8 GB, since the system clears the buffered data as soon as the memory is needed elsewhere. (Don't ask me why the numbers don't seem to add up perfectly, I don't know the actual math behind it.)