I have O'Reilly subs available both from my employer and my local library. Doesn't fix the UI issues but does at least shift the ROI calculus.

There are some applications that try to export O'Reilly books into Kindle formats, but every time I've tried they've mangled a few tables, formulas or sidebars, etc. I should probably sell or hand down my kindle and find something more suitable to O'Reilly.