Yes, it is so. They save money at research. It is possible, when they have not enough money at the start. In such way they get some gamblers from other casinos - it helps to get some money as fast as possible after start of the project.
It could be that their money is limited because it will be used for various other things so they use those methods. But I see when new gambling sites are promoted here, they can get new members in a short time because the level of enthusiasm of the members here in trying a new gambling site is very high.
You are right. There are different things that you have to do when you start a big project. And very often you have not enough money to pay for everything you need and you have to choose the things you need first of all. And sometimes the fastest start can give you additional money to all these things. So all situations differs, in every situation we have to choose the optimal way.