Not if it's priced out of your reach.
Possibly, But when you are talking shortages you can be shorted out of having it too. So the issue becomes when there isn't enough of something to go around, what is the best solution to allocate the resources and what are the tradeoffs. It also deals with economics in general too.
To be fair to ksen, look how well government mandated low prices are working in Venezuela.
And it's not like economics could predict what will happen when the government sets a price below the price which would equilibrate supply and demand.