Oh there is nothing wrong with being obsessed!!
I have only been keeping fish for approx 2.5months now and every chance I get (even if not purchasing) I go in to browse my lfs.
I probably wouldn't go more than 10 loaches to my 10g anyway, they are in my Betta sorority tank with 8 females. I don't want it too crowded although it is so tempting to buy more when I see their little faces in the lfs!! It's as if they are talking to me "I'm cute, take me home Laura" lol
I love the idea of the wine bottle! I have pipe cut offs from the plumbing store. I boiled them before I added them to the tank and squashed a couple for a bit of variety. The water looks a bit hazy due to water change.