just for the resort, no.
But if you're doing Hawaii, it's well worth it (be advised it's expeeeeeensive)
If you're going to LA and
Disneyland Resort, it might also be worth it doing the round trip to Aulani. (just like a disneyworld trip could be paired with a visit to key west ... same time on the road to KW as on the plane to HI lol)
but planning a trip halfway round the world just for the resort ... only if I was filthy rich and had nothing better to do.
Just like a Brit probably wouldn't fly to Japan to do 3 days at Tokyo DL without visiting Japan as well.