I think bitcoin will go up a little bit more, but if the block size debate isn't resolved soon then it will probably fall way below $100... As for right now I'm investing in btc in terms of purchasing power to buy 1 or 2 altcoins which I think possesses the most potential for being the next big thing, but since this isn't altcoin discussion then I'll save those views to myself.

Also I'm interested in buying physical bitcoins because I think that no matter if the price will go down, or if it becomes very obsolete, then physical bitcoins will always be a way of preserving them and I think that they will hold a very high value 50 years from now when it becomes kind of like an antique.

But no one can really know what is in store for the future of bitcoin... it's just fun to be along for the ride, whether you've been on this ride for a couple years or just starting out now.  I just definitely wouldn't sell my car/house for bitcoins, that's for sure.