I imagine to pay some dont spend their money on luxuries like videogames and movies and save it on cons, and to get they days off maybe they have lenient jobs or work weekdays to make up for it? Maybe it will all become clear soon :3

It's called lack of priorities. Either they:
1) Are having friends make them suits, clinging to transport sharers, having someone vouch for their food and hotel costs.
2) Cashed in on their tax return and used/ are using it on furry cons and fursuits.
3) Paying their expense through credit cards.
4) They are living in the cheapest levels (in someone's garage) and paying only $100 a month while the rest of their money is going to other wasteful things....AKA, cons, fursuits, art.

I am able to attend the cons I go to because I stay local. I do not overspend, and I share costs: Hotel, food, etc.

I can afford to go to cons because I work and I save money.

Sorry for the random response....I am not watching you, but I went to leave a shout on your page and happen to notice this journal.

See, I Like the way you think. Because you actually got what I was trying to say :)
I hope to one day be able to experience cons like AC, RMFC, etc. But I have things like a job, and school that takes up the majority
Of my time. I also have to pay for groceries etc. And I can't drop everything just to go to a con.
The closest ones I have that I can go to would be the one in Seattle, and the new one in Portland.
Which I actually live there so its nice :D

I don't know how it works up there, but here some jobs don't pay you for extra hours. Instead, they work with what we call an "hour bank", where your extra hours are converted to "break hours", and they eventually accumulate into break days.
That basically gives you the option of extending holidays, or taking a week or two off if you're too stressed. That COULD be a way for these people to have time for a couple conventions in an year...

My dad used to do that a lot on his last job, which was in another city very far from here, so that he could come visit us and spend some time with my mom, me and my sister.

Just don't worry too much about it right now. If you wanna go to a couple cons in an year, plan things in advance and save up your money.