Additional costs?
Landing fees (peak or off-peak). The hourly rate is advertised + landings.
At EGNT they're a fortune.
What does the hourly rate include? Is is chock-to-chock while you pay for 20 mins or more waiting at the hold, or are you paying for departure to touch down?
Tuition? Is ground school included or additional?
Then there's a fortune for your airport pass, not forgetting a wee bit extra for a high-viz vest.
For a young lad who's cash may be tight, all serious issues I would have thought.
Same goes for geordiejet. Check what you'll pay for. The rate may not seem so attractive when landng fees are added. I believe there's a Bulldog for hire at DTV too.