Amp sims are dog balls. It sucks also when it gets outdated by another version or another product which has 'better' technology. Then you get compatibility issues or when stuff is not working. It kinda feels like working on a computer, and it is. I hate that and that's why I call my IT guy when the PC's not working.
The issues with tube amps are much easier to manage. I can trace a schematic easily and know how to solder. Most of the time a bad tube just needs replacing. Also, the classic tones are hard to beat, it might sound dated on some amps, but it will always be sought after.
I consider amp sims easy band aid solutions to when I can't bring an amp or record an amp, but my preference will still be amps.