That's kinda what I figured. I guess I'll just stick to playing them on my laptop. I pretty much only play the Castlevania games (big surprise) and maybe just a few others like Link's Awakening. Not worth spending money on it since I only care about probably 10 games for the system.
If you were to decide to spend money on it, know that they're pretty cheap. A quick look at Amazon shows them selling for around $12 U.S.