It also depends on what you are going to do with the plants that grow.
If your primary goal is to grow a few for personal use, the water method with the eyedropper can get your sprouts right where you want them.
Sowing just 10 or 20 seeds on the media can get you many that have room to grow before transplant, then you can pick and choose which to keep.
Sprinkling like a seasoning a steak (my favorite analogy) can yield you a lot that will likely need separation early, but leaves you with a lot of extra to give away to the neighborhood kids. (That is what I do, the neighborhood moms seem more excited about it though
) Alternatively, you could try to sell the extras, but most Drosera are common enough that it can be difficult to sell them sometimes, making it more trouble than it's worth.
Last, if you have enough seeds, I've seen people get the trays that have multiple, 6 plug containers. Fill everything with media, not just the plugs, so that it overlaps. Sprinkle (steak seasoning method) multiple varieties of dew seeds (mostly varieties of Capes) and grow them that way. They then choose what they want to keep, and sell the rest. A couple of plugs with 10 to 15 plants on your local marketplace site, ebay, heck, even your local farmers market for $20 to $25 would probably move quick. Whether you charge shipping is up to you.
Everything happens for a reason. Sometimes the reason is that I make bad decisions.