Tech is always a double edged sword -- in any hobby. FT8 is adding to the ham radio hobby (low signal catches, ease of use in a limited antenna environment) but it's also killing it, being that bands like 20 Meters are half empty even when prop is up because so many hams are using FT8 instead. It's leaving a lot of spectrum unused, and that probably looks good to HFT traders who may want it.... Who needs all this spectrum when just one frequency is where most of the activity is?
Although I can see their benefits, I basically dislike SDRs. Most of the ones online sound like utter crap. I think that a lot of SWL's, MWDXers and other DXers reliance on SDRs has demoted the hobby somewhat to them only paying attention to the brightest lines on the waterfall display. There is a lot to hear that you can't really see on a waterfall. I hear a lot of DX on the ham bands that goes unanswered. Sometimes I wonder if it's because so many hams are relying on their visual display, which may not show much of a signal when the DX is in the mud and watery sounding -- yet if they manually tuned it in, they'd be able to read it and respond to it.
That said, every DSP chip in a modern radio is technically an SDR. And DSP chips have revolutionized the hobby because, when it comes to SWBC DXing or listening, a $15 XHDATA with just a DSP chip inside can pick up almost as much as an expensive portable from the 70's-90's could off the same amount of wire. Considering the vast difference in cost, the performance of a DSP portable is impressive.
I think SDR's do have their benefits. They do make catches easier to share, and a lot of signal hunters use them because the visuals in the waterfall can give them a better idea of what sort of signal they're hearing.
And the idea that someone who's in an RFI infested location can use his internet connection to still DX from a distant SDR is pretty cool.
So yeah, pluses and minuses. There's room in the hobby for all of it, really. Like TreehouseSWL said, there really is no 'right' or 'wrong' in it.
As for the AM band, I like hearing the Punjabi and Sikh music overnights. And there are a lot of classic hits and classic country stations out there. You just have to tune around to pull them in.