Did you miss the second sentence?
Could you cause someone to pay more than they really should?
I agree that it's a great way to get the backup for cheap, but I don't see how it's going to entice someone into overpaying for a handcuff to a back that they may or may not win the bidding on later?
It MAY work on someone who has TARGETED the starter and PLANS to handcuff his backup...Most people target a "handcuffed player" for almost next to nothing....
Backup gets introduced.....the bidding starts at $1
"Crap...I was hoping to get his backup for a buck...I'd better bid $2"
He bids $2 (already over his $1 PLANNED bid)
Next bid...$3
"Dammit...I don't want to bid $4...that's WAY over my budget. This guy must want the same starter that I wanted!!"...
He either goes high and stays with his plan...or abandons it thinking it will blow his budget...
It works for almost ANY amount he planned to bid for the backup because MOST players hope to handcuff late in the auction when everyone else is counting their pennies......
....get the picture?