By Daniel Kline A new bill would set a higher threshold for what slot winnings need to be reported to the IRS (which Caesars, MGM, and others should love). Should you bet on it passing? Imagine paying the same rate for anything that you did back in 1977. In that year, the average host cost $54,200, a gallon of gas was $0.63, and $3 bought a dozen eggs along with a gallon of milk with change to spare. 1977 was also the year the Internal Revenue Service (IRS) set its standard for the level of slot machine jackpot that must be reported to the federal agency for tax purposes. That number was set a…