Hey, I agree with you on the LTC point. Competition is great! I wish there was a coin that actually provided something of value over Bitcoin.
There are two coins that do: Litecoin and Novacoin. The primary value they provide over Bitcoin is they are
not Bitcoin.
Just for argument's sake pretend for a moment the Bitcoin Foundation became highly corrupted and subject to selling out to the highest bidder, perhaps even the government. That organization, to date, is made up of some of the most influential and powerful individuals and businesses in the Bitcoin community. As Bitcoin grew so could the power and notoriety of the Bitcoin Foundation, and with this the potential for complete disaster if there was only Bitcoin in the marketplace.
Alternatively, look at the most recent uproar over the discussion for change of block size. Like the creation of the Bitcoin Foundation this had potentially major implications for Bitcoin, and accordingly threatened to divide the community into those for and against it. Unfortunately, by involving the protocol itself the large economic damage caused by a messy fork would be secondary to damage in confidence of block chain based currency working at all.
If Bitcoin is the only show in town then as Bitcoin goes so goes the idea of crypto-currency overall.
On the other hand having other coins that exist apart from Bitcoin give the marketplace something else to evaluate, and provide another avenue of choice to express discontent; that's always healthy.
Sadly, LTC is just a clone with a few slight changes.
I don't think you fully appreciate the differences.
First, being a clone is a compliment showing how valuable the original protocol implementation is. However, a key difference is time between blocks being reduced from 10 minutes to 4 minutes on average. This means network transactions confirm more than twice as fast on average for litecoins than bitcoins. If you don't think fast confirmation time is valuable to the marketplace, especially as it grows, I'm not sure how to explain to you that it is.
The other difference is there is roughly 4 times as many litecoins as bitcoins. Economically this is less significant, but not entirely without effect. In general, theoretically, the more currency in existence the more widely it is likely distributed, meaning a larger overall potential marketplace.
Last, Novacoin unlike Litecoin provides a very real intrinsically valuable aspect over Bitcoin, which is the inclusion of
proof-of-stake in addition to
proof-of-work to guard against 51% attacks.
This explains why these two coins, out of all the ones in existence past and present besides Bitcoin, have notable and increasing value. The free market seems to agree with this or something similar which is reflected in the litecoin and novacoin prices, now $0.14 and $0.50 respectively. Anyone remembering Bitcoin in the early days might recognize the similarity in early price point.