I’ve used windows since the 90s. Not once have I intentionally used WordPad.
It did open by default for some file types for a long time (.doc), usually mangling the content cause it couldn’t actually handle them properly. I think it was also the default for .txt files at some point, causing many curse words when editing plain text files, that invisibly weren’t so plain any more after… Programs expecting a configuration fine really don’t like that sort of thing.
So: I’m very ok with this. Just install LibreOffice or something if you needa Word-like experience. Install notepad++ for anything “plain”.
While I fully agree with the SSD side, you seem to ignore that HDDs are also getting cheaper per TB (always have, and usually quite noticeably). Also the reliability of large to huge SSDs remains to be seen as well. Obviously a breakthrough in HDD technology would have an influence as well, as you mentioned.
I’m not saying SSDs aren’t here to take over, they surely will eventually (preferably sooner), but I think it’ll be a few more years until we got actual price parity per TB. Even when ignoring other aspects like reliability.