It does not take 2 days to hit 50 even if you play the full 48 hours. Maybe if dailies reset every hour. I have 2 50's and I'm currently working on my lvl 34 rogue. 40-50 ALONE takes 2-3 days. Getting from 24-40 would take another 2-3 days. So you're looking at 4-6 days of someone doing every quest and grinding. I play on Harrow PvP-RP server. I've played every beta, and I was in here since VIP access headstart, this is the only reason I have 2 lvl 50 characters and one approaching this.
Also: Considering that the current rate for platinum is 35:1 (low end), expect this to cost a very good bit, 2.5k I'd say was cheap really considering the gold farmers are offering 1-50 for 250 dollars. Just pointing out a few things from an unbiased perspective, I know no one here and I don't really care, but you need to get your info a little straighter sir. Your friends had to have been playing almost every day constantly for a good 8-10 days to get to 50, if you tell me they weren't I'd be very surprised and would most likely not believe it but hey that's me.
This game just came out, so expect leveling jobs to cost the most and be over priced. Maybe you should get one of your lvl 50 friends to help you if they truly wanted to play with you. I'm leveling up 3 different friends of mine in my guild otherwise I'd take this job but I already have my work cut out for me. That, and they're paying me real money, not virtual numbers

Anyway just my 2 cents.