If you want to record a couple jazz songs for kicks you can very easily and satisfactorily do this today, for very little money (just higher up this thread people have recommended great tools) and it will be higher quality that what was playing on the radio in the 90s. And I'd argue that if you were as good a crooner as Radiohead are -eh- experimental musicians, I'm sure you'd find the time to make an album that would make yourself rich.
Sorry I'm a little ranty - gonna get a drink I guess
You don't need two months of mixing for your crooner album. You can mix it yourself on the weekend and be 80% there.
Like the guy that did Tubular Bells keep re-recording it because it's not good enough for him - but I'm fine with the version he first produced. AI isn't going to change anything here.