I've the A2000 as my main and my old Samsung 840 for storage(which used to be my main).
Obviously the difference is huge (nvme vs sata ssd).
Look, in my 15years of working/dealing with computers, I can honestly say, most expensive isn't always the best. I mean, I could buy the most expensive gpu on the market but run it on a regular 1080p 60hz monitor.
I could have the fastest RAM on the market but pair it with an average cpu.
I try avoiding expensive parts as one will drag another and I'll never be happy with my config.
Also, difference isn't that great between an A2000 and the better Samsung competitor to justify the price difference. Dunno, call me old
I said that the performance is not the issue, its reliability.
ive been in the computer space for a few years, not as long as you, but ive talked with and heard from system integrators, and local pc part stores, and the one ssd manufacturer they always say never has problems, is samsung.
and while yes, they are also the best performers, they arent always the best bang for the buck for an average joe.
for people like me and you, any midgrade ssd with a dram cache is good enough.
and you wont notice any difference, nvme or sata in day to day use.
Thats why i said for important storage you want samsung and no one else, but for office and regular use, any respectable manufacturer is probably fine.