So it's looking more and more like I can't base my decision on looks, such is life...
BUT, I do have one last question (I think this is my last question, lol).
I was just researching the replacement fuses on these two models, and I am having a hard time locating the fuses on the Amprobe AM-510. It may just be the way I am searching for the fuses, but the Greenlee DM-45 seems to be using more "standard" sized fuses. I think I have been able to find the right replacement fuses for both, but the ones for the Amprobe were harder to find and cost way more. If someone can let me know if these worries are unfounded or not, I would appreciate it.
According to the manuals:
Amprobe AM-510 uses:
F1 fuse, 0.5A H 660V fast-fuse, 6.3×32mm
F2 fuse, 10A H 660V fast-fuse, 6.3×32mm
DM-45 uses:
400 mA/600 V fast-acting fuse, minimum interrupting rating 20 kA, 13/32" x 1-1/2" or 13/32" x 1-3/8"
10 A/600 V fast-acting fuse, minimum interrupting rating 20 kA, 13/32" x 1-1/2"
Thanks!