So I'm contemplating this purchase. I have used The Tax Book for about a decade, but always the printed book. I started out with the 1040 edition, then moved to the deluxe edition as my client base changed. I also subscribe to Parker.
What appeals to me is the access to all of the books online, plus the deluxe edition printed. I like the ease of use of the printed version and it remains on my desk all year. I have a goodly number of clients approaching or past retirement age, so access to the Social Security & Medicare book is helpful. I have purchased it several times over the years - generally every three years. I have plenty of rental and business clients so having access to a Depreciation book seems to be helpful. The All States edition will become increasingly useful, I think.
On the downside, I will never own the online books. They are as good as long as I pay the subscription. I also wonder how much extra information the extra books have. Is it just the pages from the other editions with a few extra thrown in? Or is each one a standalone book that is worth purchasing or, at least, having access to?
I will maintain the Parker subscription even with TTB Web Library Plus, if for no reason other than the more comprehensive tax cases.
Thoughtful observations from those who have used either Web Library Plus or who have purchased more than the 1040 Edition or Deluxe Edition would be most welcome.