I honestly can't believe the outrageous(ly hilarious) shaming going on here.
Perhaps the OP shouldn't have called it extortion, but I suppose I understand his predicament. Some sellers engage in "shill bidding," which is essentially when the seller bids on his/her own item to inflate the price. Sometimes this leads to the seller winning his own item and having to relist it, but the rewards are sometimes worth it.
Not saying that's what was happening with the OP, but it's a lesson learned. Max bid means the literal maximum amount you are willing to pay for the item, and if you weren't willing to pay $130 for it, then that shouldn't have been your maximum bid. If you expected to get it for less, then your maximum bid should have been less.
Anyways, sorry for the exorbitant price, but as has been repeated in numerous and over the top ways already, you did it yourself. Just because it's been sitting at $5 for the first five and a half days, always expect the price to skyrocket in the last thirty seconds.