Where should I buy printer ink from?

I just bought a printer off Digitec:
https://shop.digitec.ch/en/s1/produc...43?tagIds=77-8

Where's the best place to buy printer ink from? Online? Local in Geneva (or Lausanne as I work out there still)?

I see there's some inks off digitec.ch:
https://shop.digitec.ch/en/s1/produc...=77-8-93#f=b92

I have no idea what ink to buy, from the digitec page, this is the top ink (with all the colours) but I don't know if there's a larger size, I saw in the adverts for this printer that they had a high-yield version, unsure if it's this one:
https://shop.digitec.ch/en/s1/produc...18?tagIds=77-8

The prices on TopPreise are all pretty close, a few Swiss less from one of the other companies, since I've not used them before (unsure if you'd have to pay for delivery or other things), so I'll probably buy from Digitec:
http://www.toppreise.ch/prod_302688.html

What do you guys recommend?