Slim,
Your list of useful Bible translations is very similar to mine. To that I may add the TANAKH, the Rotherham Bible, the Jonathan Mitchell NT, the Jewish Heinz W. Cassirer NT, the Apostolic Bible Polyglot, and the Interlinear/Concordance by McReynolds. There are so many good reference works out there.
On The Expanded Bible, it is not a must-have. It doesn't excel at anything in particular. The reason I use it has to do with my old-age tendency of laziness in the research department. There was a time that for any-one doctrinal issue that came up along the way, I would scour dozens of Bibles and reference works every time. I got tired of that. So now, more than ever, I value reference works that same me time and effort. This is where The Expanded Bible comes in. And this why I value Study Bibles (like the NIV, CSB & the CEB) all the more. (Incidentally, this may be one reason poster vienne likes the 26 Translations Bible.)
These aids help me understand any biblical passage within its context. They explain Bible customs, seasons, measures, ancient traditions, adding many relevant cross-references. The Expanded Bible has many notes within the main text. so there is no need to take your eyes of your reading spot, unless one chooses to go deeper in the research. That said, there are more comprehensive reference works elsewhere.