I'll do that for similar reasons. Not so much b/c I forget to keep an eye on my watch list, it's just that at any given point in time, it's damn near maxed out with 10-20 items ending w/in 24 hours. Putting in the minimum bid bumps it above the regular watch list to the 'bidding on' list and makes it stand out. I'll only do it if it's less than $10 or so, preferably a .99 opening bid. In the case of an item that has no bids, I think putting in the opening minimum bid early can also potentially help dissuade the seller from ending the auction early to sell to somebody who made him an offer under the table. Some won't do it at all, some won't do it if it has bids, and others don't give a shit and will sell it out from under everybody. There's no way to tell how often it works, if at all, but I've lost count of the number of times I've been watching something that's a few days in and still has no bids and suddenly it just jumps to the Ended list. It seems to happen less with items that already have a few bids, but who knows.