To answer the original question, there are a lot of reasons you see a lot of longbows at shoots nowadays. First, there are the positive traits of most all one piece longbows: light weight, smooth draw, quiet release. Takedowns with R/D limbs have all these except the light weight (comparatively). Some guys like selfbows because of the added challenge, nostalgia, or the idea of using one of the purest forms of traditional archery. Some like Hill style, ASL, straight limb, or whatever you want to call that type of longbow, for a lot of the same reasons, but with a little more durability that comes with modern materials and construction techniques. Others like the R/D longbows because you get the light weight, smooth draw, and quietness, but keep performance close to what you get with a recurve. Some like the looks of a three piece and either like or at least don't mind the added weight, but like the smooth draw and quiet release of a longbow and opt for the takedown with R/D limbs. In short, the reason you are seeing more and more longbows is that there are many different options in the "longbow" market. Most trad archers can find one that works for them, and for many, the advantages out way the disadvantages (if there are any) when compared to recurves. For me, I have enjoyed every style of traditional bow I have tried and will likely continue to shoot multiple styles.