i think everyone's who heard about my saga of my broke gaucho (and the way dior handled it) would really hope that nothing ever happens to their dior. so i do agree with you that in terms of their aftercare service, it's just terribly lacking.
but the other bags i have from dior have not given me any problems. somehow i get a feeling that there's a slight slump in the quality of designer bags currently. i've read on the chanel forum about how quite a few PFers had problems with the stitching on their cabas and the handles to the luxury bowler, and i think i remember a PFer saying her fendi b-bag had a broken strap/buckle. i was at selfridges' sale and there were so many chloe paddys that were return items because the handle/strap broke. not to mention when i wanted to get a replacement gaucho for my broken one, the only other gold gaucho available was also faulty.
like you, i love the designs for dior's bags and i guess i'd still readily buy from them. that said, i do agree with the lack of service by SAs sometimes. but generally i'd say i've had more positive experiences with the dior SAs than negative ones.
p/s Chrystalline, you're so right! was treated icily by the SAs at dior yesterday up until i made the purchase, and then the SA was all sweetness and sugar. today when i called them up, i was given the icy treament again.