I think at this point there is no or little difference, which exchanges list AMBER. Exchanges are places for fast selling mined coins, speculatively sell and buy coins that are on top, exchange all profit to BTC (fast!), then exchange BTC to USD/CNY/EUR, send it home and drink it.
But AMBER, as company's share, is long term investment, profit comes with months and years, AMBERs are shares, not coins. These are 2 different things - AMBER is like trading on stock market with long positions, to get dividends and retain value, but simple cryptocoin/exchange pairs are mostly for fast trading, short positions, speculations, like financial market, money market.
Investors, traders and miners have seen this kind of coins before, backed by something, like MI*AScoin and others and they are learned their lessons... Today newcomer must work hard to earn trust. People who are taking long positions, don't rush to first train, they buy AMBER after first dividends (few), after second dividends (some more) and then keep coming. People who are taking long positions are important, because they have money. People who are taking long positions are important, because daytraders dont like AMBER - too little price fluctuations, too small possibility for speculations. Todays AMBER position is not a "something wrong" or "we need exchanges at any cost", it is normal.
I think there is very small possibility that AMBER team just runs away pockets full of BTC
, there are tens to thousands times bigger possibilities to encounter some political, economical or financial (regulations etc) difficulties, so better spend exchange-rushing resources to lawyers, consultants and traditional marketing.
I like that AMBER team communications have been very correct, accurate and informative, this is essential for building reputation. I hope The Team retains this kind of communication style through wins and losses. Good luck with AMBER to everyone!