I don't care if there are other products out there they may be newer, or have fancier inks, this like Sharpies are items I have used for along time. Periodically I buy a set like this to upgrade colors that  have been used. It can save money on the per piece price by buying sets like this at a good price. I started using Bic Markers back a few years ago and I buy a 36 color set, then buy a 24 color set to fill in the ones used up. I have started doing this with Prismacolor as well, bought this then take a list of what other colours I need to local art store and fill in the holes. I started doing this in times I could only afford a few tubes of watercolors and I was selling works to buy more supplies and food. About a century ago, it seems.