The Aldi price is ~$35/kg of PLA filament. I went back to Forrest Hill Chase today and picked up another two packs. The local Aldi didn't have any (and I doubt you'll be able to get it in store once it is all gone).
You can pick up filament cheaper on the net, and yes it seems you can use any brand of filament (they simply come in a roll).
I think the Forest Hill Chase Aldi probably had a machine for so long because the demographic in the area seems quite a bit older, plus it is a quite large store.
The printed Duplo track piece I made is quite impressive. Perfect fit and cheaper than the real thing
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