Gourmet high-end Keurig pods are like $0.50 each. Make your own coffee.
Truly you could be making great coffee at home with <$75 of equipment. Gram scale, eBay secondhand conical hand grinder, department store kettle, pourover funnel, filters.
300g of water over 17g of freshly ground beans will pretty much always beat the K-cup on quality, is cheaper and produces less waste. You don't even need fancy beans, my go-to is the store brand bean from the supermarket.
Even cheaper, tastes better, and takes only slightly longer to make.