Don't feel bad that the dollar peg isn't working for SBDs. I think it's actually refreshing - the free market supply and demand pressures have overridden the both presumptive and self-limiting characterization of SBDs as being locked to the value of one US dollar. Demand has likely grown due to the fact that they are going to be correlated to the creation of SMTs, per the SMT White Paper: "Initially smt_creation_fee will be set to 1 SBD & no means will be provided to update it."