It seems very difficult when you first start. After you've done it a couple of times, though, you get the hang of it, and it's not that hard. For certain situations, such as fitting the clothing to morphed characters, it's less hoops to jump through. No messing with the Tailor, no fiddling with magnets.

But there's no need to buy dynamic clothing to try it. There's tons of free clothing. Planit3D, PoserFashion.net, and here in Rosity free stuff.