I started with spinning gear, then had a few outings to the local pond in which I decided to throw a small crankbait, and every time I'd retrieve and lift it out of the water, it would spin like a top. So I decided to try my hand at a baitcaster to try to avoid the line twist.
I was fortunate to be able to borrow one for starters. I was also fortunate to live on a cul-de-sac and have a neighbor who likes to fish as well, so I'd stand in the street and practice casting a practice plug at his dogwood. If you do practice on dry land, spend some practice time at a pond as well -- the line feels different when it's wet, you need a slightly different touch with your thumb.
My most recent fortune was being able to pick up a second-hand baitcasting combo at Castaway in Smithfield (Thanks, Corey!!) I've been warned that the bottom price point in baitcasting gear can sometimes be more trouble than it's worth, which makes some sense to me. Unfortunately, that puts most of the reels you'd actually want to try out, somewhere around $70 new, or thereabouts -- significantly more than a spinner.
I'm still no expert, and I haven't worked out just where in my roster the baitcaster will play, but I'm looking forward to figuring it out.
Lefty