I have had an AADE LC meter for many years and it has served me well. As you note, it is no longer available except as used.
I also have a couple of the inexpensive Asian sourced AVR based LCR meters, they are ok but leave me wanting. They do generally work well for quick and easy part id'ing which the like of the AADE does not.
After much fussing and reading and viewing youtube videos plus a nice review by Dave of EEVBLOG and for which you will find many postings on this forum, I bought a DER DE-5000 LCR meter. It does everything and as well as and better too than the AADE does. The AADE is a simple and dated design but did what it does quite well. The DER DE-5000 is a more modern integrated design with many more features AND for a bit less money than the AADE sold for in it's final years of availability.
There is something to get said about building your own and I do so frequently. But there is something to be said for an off the shelf solution as well.
cheers,