My first Fluke was a 75 in the early 80's when I was dirt poor. It served it's purpose. Then the 87 came out. It became the standard at my day job. We've bought more than a 500 over the years. Some of the advanced features of the 289 are good for industry. Given the price, I can't see any value in it for home use. I do think true RMS is important. The 7X's are not true RMS. These days decent true RMS meters can be had for $100 or less including a used Fluke 87.
Last year I bought some $30 meters with the intended purpose of using them only for testing diodes/transistors. They had a 600V rating. One person, (not me) used it on 480V and changed the range switch while connected. The meter was severely damaged.
There are lots of true RMS meters out there. You pay for the Fluke name. The cheap ones have an AC/DC voltage button that's a PITA. Find a fluke on Craigs list/ebay in decent shape.
I ended up with the 87V, the i1010 (ac/dc) amp clamp and a case to keep them together.
Although I may have infrequent need for amp measurements over 1000A DC mainly I am well covered for my needs. And as you point out, it’s pretty much the standard in industry.
Meter is new, open box (made Feb. this year), clamp is used, but perfect, and the case is used, but never issued at some industrial facility. So that looks new as well. Not that appearance matters on a case...
I learned that the current version of the large case does not come with the shoulder strap (?),so I got the old one in case I want that climbing a ladder or something.
Say what you will about Harbor Freight tools but in recent years the quality has risen dramatically and if your using them the way they were meant to be used they work well. Besides at my age I ain't spending a ton of dough on tools anymore just because it has a "name" on it. That's money I can spend on " vintage stereo equipment" that I really don't need either!