The reason to make a new one is because there is meant to be an ecosystem.
Coins are not there for new people to find and mine, coins are there to trade for one another and support bitcoin.
NEW coins made (by you) are for you and your friends to mine, or for your school to mine, or for your team to mine, or for your WoW clan to mine, or whatever.
Then those coins are to be traded for other coins and used to support Bitcoin [and formidable altcoins].
Hence, developing a whole slew of altcoins, treated as commodities, not currency, specifically for one niche comprised of myriad brands, most all desiring to augment their current revenue stream, with them and their countless followers doing most the
sneezing for each individual alt.
No pump-and-dumps. No bots. No other negative attributes contributed to current altcoins, with hopes of not creating new negs in the process.
And, the beauty part of it is that holders of one brand's alts will be willing and able to readily trade for another on one dedicated exchange, with some altcoins breaking out to be traded on one or more of the current venerable exchanges after reaching some threshold, but pulled if they start to underperform, yet will always be available on our niche's exchange unless the notable backing an alt using their brand decides to pull the plug, in which case there'll be literally tens of thousands more altcoins to fill that void.
For you guys having strong opinions on the hundreds of altcoins now, wait till this time next year when you witness thousands, and that's just tickling the surface of what's yet to come, especially when the plan is to send permission-based marketing emails to subscribers consisting of copy akin to...
The line it is drawn
The curse it is cast
The slow one now
Will later be fast
As the present now
Will later be past
The order is
Rapidly fadin'
And the first one now
Will later be last
For the times they are a-changin'