Why not invest $500 in Bitcoins and the remaining 500 in litecoins.
While Bitcoin is worth more, you would be able to get more litecoins for the dollar value.
Perhaps lLitecoin will skyrocket as Bitcoin did and you might find yourself better off !
One of my many regrets is not holding onto my litecoins when I purchased a wad of them in early 2012 when the price was next to nothing.
P
I think this is the best advice. But, it appears that we are in a bubble right now. You should wait for prices to drop before investing.