how about the expense? I only say this because as a new grower, I haven't lost any in a horrible way just yet (Knocking on wood), but I'm constantly finding something new to spend money on, whether it's plants, or potting media, or interesting cachepots to stick orchids in, & I'm thinking about growlights & maybe a small greenhouse...the only reason I haven't bought a bunch of new books (another addiction) is I've been using the library....