"The newest projections indicate that those provisions will cost $701 billion over that same period. Intervening projections (March 2012 is shown in the figure) of the cost of the ACA’s coverage provisions for those years have all been close to those figures on a year-by-year basis. […]The law isn't bankrupting the nation. In fact, it's reducing the deficit. What's more, it's actually boosting incomes and spending, thereby helping the economy.
In all, the revisions incorporated in the current baseline decrease by $9 billion the projected cost of the ACA’s insurance coverage provisions over the 2014–2023 period (the period covered by the previous baseline), from $1,363 billion to $1,354 billion (see the table at the bottom of this post). Nearly all of the change is for the 2014–2017 period.
On the other hand, House Republicans have cost the nation's taxpayers roughly $72.5 million on holding 50 repeal votes (based on calculations by CBS News back at repeal vote number 33), not to mention the opportunity cost of the House not doing anything at all productive.