Burr grinder vs. Blade grinder is the difference worth it?

Yes, even at budget prices. Burr grinders crush beans between two abrasive surfaces to produce uniform particle sizes, which means even extraction and better tasting coffee. Blade grinders chop beans randomly, producing a mix of fine powder and large chunks that extract at different rates leading to bitter and sour notes in the same cup. Budget burr grinders ( budget) outperform expensive blade grinders for any brewing method.