At one point I had over 3000 LTC when it wasn't worth anything, believe me, I know.
Alt systems are just acting as a ponzi, all dumb money.
If anything forks will be created within Bitcoin itself to solve an issue people aren't sure of.
So you say you
had 3000 LTC, meaning you made a mistake selling them before they appreciated. Why would anyone believe you then and what exactly do you know since you didn't know to keep your LTCs and sold too early? LTC seems to be doing fine, is it because you sold too early and now biting your elbows for that you wish death for alt-coins? They wouldn't care about that, they'll keep surviving and diluting bitcoin value. Because technically they are equal to bitcoin, they only lack in infrastructure, but that's just a matter of time. Not all alt-coins will survive, only those that have serious devs and community behind them, but for sure bitcoin won't be the only game in town.
Bitcoin wont be the only game in town, but its still the best game, when someone (Zynga, Overstock) wants to begin accepting a digital currency, they dont use dogecoin, they will start with BTC, LTC probably transacts a tiny fraction of what bitcoin does, the media knows BTC, it has a brand value now
Will LTC survive the long run, even flourish? yes, and maybe a 3rd coin, like peercoin, but is it different enough to overtake bitcoin, I'd say no, eventually it will fall by the wayside, because even more than BTC, LTC is currently only a store of value, a hedge with much less base support, propped up more by the success of its competitor than its own use, which is not to say BTC cant be toppled, there just isnt a scheme with clear enough advantages over BTC to take from its momentum
And just because humans have had differing currencies so far doesnt mean things dont change, people didnt have near universal access to free knowledge 100 years ago (internet), we have only just gone to space and got down being able to be anywhere on earth within a day, change is the only constant, fiscal revolution has happened many times before and it will happen more after digital currencies have their reign, being able to use the same money at a starbucks in california and a starbucks in shanghai is a logical progression of advancement