I do love to watch them grow. I can hang out with my plants and just look at their shoots and leaves and root tips for ages. But I find that really young seedlings are sometimes too delicate for my still-imperfect culture, and I'm likely to lose them, so I voted NBS. I actually mostly buy plants that are sort of established but ~2 years out from blooming -- that seems to be where my enjoyment, culture style and income all meet.

And as someone else said a while back, I actually avoid buying plants in bud/bloom because the shock of changing environment is so hard on them then. Definitely when I'm ordering online, anyway. About the only orchids available locally are very sturdy phals and hard-cane dens, which I don't get into much anyway.