On EBay make a decent early bid (about 2/3 of your maximum) so the seller won't cancel the auction or sell it off EBay due to lack of bidders. Set a snipe bid for your true maximum. Then don't think about it again because there's no point in monitoring interim bids.
Sellers will sell off eBay even if a bid has been made on an item.
Many sellers of posters, cars or whatever else often advertise elsewhere so don't be surprised if you place a bid and then the item is taken off eBay.
It's happened with myself and others many times and whilst it is annoying, you have to respect the seller - eBay is not the only avenue of sale.
Take the majority of auctions (especially property auctions!) - a seller can remove a lot right up to the point it is about to be sold!
When I last spoke with eBay, they told me that you can remove items with bids up to no later than 24 hours before auction end (although this could have changed now?).
I don't get the bidding comment.
Why bother placing a bid for 2/3 of your maximum bid, then have a snipe set for your maximum bid?
Wouldn't it be so simpler to have a snipe set at your maximum from the start saving you a little time?
Then if you win for any price below and including your maximum bid, great! If not, then it wasn't meant to be!