Would players go for this Rebuy / add on Structure?

[Small Fry]

Buy in $10/ T1000, Rebuys $10/ T1000, Add on $20 / T2000

Rebuys up until the end of Round 3 and then the option to purchase the add on. I'll create an appropriate blinds structure but I've never done an add on so I'm wondering if this would work. Typically everyone has the add on price the same as the buy in and rebuys.