Regal Angels are not rare, but EATING Regals are.
LA does have them eating before they ship out. They do QT and treat them for parasites and they do offer a 14 day gaurentee...
There are good reasons people like to buy a difficult to keep fish from LA DD.
That $89 Regal drop ships from a west coast supplier. Guarenteed to have atleast some form of parasites. Almost guarenteed to not eat and chances of long term success are probably 1 in 4... at best! (I feel that I am being generous here, 1 in 5+ wouldnt suprise me a bit.)
I have had great luck with LA DD and feel a lot more comfortable buying a regal from them but I would still not expect more then 2 in 4 regals even coming from those guys to make it long term.