No doubt lookalike carts have improved, but I still remain nervous, having had to replace an Epson printer years ago after using a cheapo cart. I warned my son - naturally he ignored me and had a similar experience.
For my Canon I buy the real thing but shop around for the best price - which usually means online ordering the real thing from the Channel Islands. Still far more expensive than a lookalike though. I never go near PCW!
But of course straightforward printers are as cheap as chips to replace now, so it's up to you.
Been using third part ink on my canon for over 2 years now, now using a place in the Amazon shop, £10 for two sets is pretty good.
Quality is fine, the only problem I have is that they never send the same make. I got Inkrite, jetplay and some unnamed one. But they are ok and quality is good.
My last canon lasted just over 12 months, which was annoying, but it broke because a roller flew out, nothing to do with ink.
Adrian
Desktop machine now powered by windows 7 pro 64bit , laptop by ubuntu
On ADSL24 using C&W network.