I do feel that its not worthy if investors are not rising as well !!
Where did you get the data that investors are not rising? Anyways, its a gamble for exchanges but in the long run they are going to win. Besides competition are very tough in this niche, so its just a matter of time before trading platform cease to exist.
How many exchanges do we have right now? 200 or maybe 300? And how many traders do we have? couple of millions? So trading platform is not saturated and a lot of room to grow.
I believe most people just tend to assume things in their head because of the bear market and just simply state that because the market is not growing, investors are out. But, system is most important for attracting the new investors. When more platforms are availble with enhanced features then we can expect more people start investing. Yes, we may see a lot of people hedging in fiat at the moment, but that does not mean, we still do not get to see the rate at which the market adoption has increased over the years and still increasing hugely as time goes on.
One thing with life is that you see exactly what you want to see, and since during a bear market, what most people see is negative, they just pretty much imagine that investors are no longer increasing in the market, and I believe that is one thing time will tell and we will get to see how the increase in exchanges will even be of help when we get to see huge boom in this market.