the generics I was getting from gander mtn are no longer available, so I ordered the coghlan fuel tablets (pack of 24 equates to 8 esbit) from the strange named lowest priced place on a google search: ManVentureOutpost.com
shipping was fast and well packed, slightly expensive - I give this source a 9.5 out of 10
this looks like the best place/ deal going for fuel tablets at 10 cent per meal shipped vs over 50 cents for esbit