If you still live with your parents I do not see any pros either, what will you do when the time comes and you move to college? A large collection collection is a lot of work so imagine your life between college + work + large collection to maintain.
It will also be very hard to find a place to rent of campus that will allow snakes.
There are many things to consider a large collection cost money, food, vet bills when necessary, breeding cost money too don't even think about breaking even in the first 1 or 2 unless you have a SOLID business plan and a serious investment.
With a large collection and the start of a breding venture, you will have to consider breeding your own food, it will save money and allow you not to depends on others but it also mean more time and work.
What if in 5 years from now you decide to travel the world?
The important here is that this is a big commitment and responsability and if you are passionate now you still will be when you will have settle down in life.