There was incredible price rise of UNC for the past month.
1500 satosi --> 85000 satosi
It does not stop yet.
From what I've seen, buying after an "incredible price rise" leads to bagholding and tears. Exceptions are pretty rare, and they depend upon a lot more than excitement to work out. And even if your coin is one of those rare exceptions, you still have to ride out a huge loss for a long time before your long-term scenario kicks in.
Either way, it makes more sense to buy when the market's quiet. The trouble is, buying a quiet-market coin takes some legwork.