We all do it every once in a while. It's nothing to be ashamed of. Run an eBay search for items we probably are not going to buy anytime in the near future, but we feel like looking at them anyway. It's just like window shopping on 5th avenue during the holidays. For me it is a nice little break from constantly selling items on eBay and rarely buying.
What's your eBay search weakness? I would say mine is searching for rare Range Rovers especially a 1997 Defender 90 Wagon. I am a Land Rover nut and I have wanted this truck which was only available in the US in 1994 1995 and 1997 in limited production. See the thing is the price is about the same now on a used one as it was on a new over 12 years ago in 1997.