I recently broke down and ordered a new vector grid for my Epilog Mini-18 laser cutter. First, I was happy to find that it wasn't as expensive as I had imagined. Second, I was pleasantly surprised that the new vector grid was a considerable upgrade over my now 7-ish year old very heavily used vector grid, seen above (I really need to clean the old grid).
The new vector grid has a nice aluminum frame and the edges of the honeycomb are glued in place, keeping the comb rigid and flat. The new comb seems a bit stiffer than the original as well, though I'm uncertain if that's more due to wear on my old grid or a difference in material or metal gauge on the new grid. Either way, I'm loving the new grid!