My team on Magtheridon is having the same experience you are having... lack of gold. I couldn't afford to buy level 30 mounts until I hit level 52. I'm at 60 now and have managed to save up ~350g from selling random instance drops (greens and a couple of blues) mostly from SM and ZF. I doubt I'll be buying my epic land mounts for a long while. I haven't paid for all of my training spells... just mostly Lightning Bolt, Chain Lightning, and a few other essentials. My next purchases will be to upgrade my bags from 6 slotters to Netherweave Bags. I picked up 4 * 12 slot bags out of SM when I was running it. So my lead toon is doing alright on bag space. I just need to get more room on my alts.