yep i agree totally
for me i normally buy original HP toners at Sim Lim Square or at Popular if urgent...but cartridges are not entitled to POP club members discount.
There is a shop at SIM LIM SQUARE who claimed they can refill all kinds of ink cartridges for you.
Not yet tried for my canon printer but have stand by my empty cartridges to bring SIM LIM to try let them refill. One set of ink is $60 (Black, tri-colour) and can refill 10 times.....first time they will refill for you free of charge, after that we refill ourselves
Once i tried will post here...heeee