I Can't Make This Desicion on My Own...

Dreamcatcher -- Very good words.

XJumperx -- Dreamcatcher has caught my sentiments exactly.

I'm a tad confused, you think you're too big to ride your 14hh mare but you're happy riding a 12hh pony?

I have no idea how heavy/tall you are, but if you're considering yourself too large for a broken 14hh arab, then I think you would not be appropriate for an unworked, unbroken 12hh pony.

I think also you have to consider your market, as mentioned before. Not many people want 12hh ponies, and those who do usually want very experienced, child friendly ones, which you're not going to offer. I've noticed it seems to be a growing trend not to buy really small mounts for children, but instead to have larger ones that are a well trained and quiet, and allow room for growth.

I'd think seriously about this before you commit. You could be stuck with a pony you can do nothing with. Additionally, a $400 profit, before expenses, is nothing. Just transport costs would eat into that, not to mention, feed and farrier. If you don't have ponies you'll probably have to buy new tack to fit it. And when its ready to be sold, it can take months to find a home, months where you have to still pay for the farrier and for feed etc. The risk is high too, this horse just gets injured once and needs a vet, then you're losing money.

Make room on the 'Tad confused couch' Saskia

It doesn't make sense to me either, if you feel to big on your arab, but want to start small ponies?

I'm also struggling with balancing

and

Because that means that you are rating yourself as a less than intermediate rider, so why would you think that you can start horses?

If you would lease a horse that needs an intermediate/advanced rider to a child to enjoy, then that maybe doesn't say much to your future in business.

Maybe I'm missing something?

Sorry, been out!

Okay, I have completely decided against small horses for reasons you've stated - If I'm too big for Diamond, I would have no place on a still-developing horse's back. I was just being stupid trying to go that way.

I have also decided against taking horses in, thanks to Dreamcatcher :) It had skirted my mind, the economy, but I turned the switch off, not wanting it to be true. But all well.

I am a decent rider, Golden Horse ;) I would label myself advanced for my age. I have taken Cowboy from racing habits - leaning hard into the turns, pulling through the bit (still working on that, it's coming) and charging around to a decent little prospect. Not to pat myself on the back! I stated 'for an advanced/intermediate' rider because I did want to mention that a beginner can't ride her. A beginner couldn't slow her down, make her what they want. I said that she could be slowed under those circumstances because it would be more in my head that they would have her and only her, or maybe one other horse, and have the time to put into her. Sorry for the confusion!

For kicks, I'll post a video of Diamond. It's not one of significance - it's just me tworking to get her onto the bit at the trot. But it shows a little of how I look on her, and why we aren't a hunter team.
She has excelled in Eventing - a good time in XC and ShowJumping, clear in both. She had a good Dressage round, but there was a plastic bag that flew by the arena that was coming to get her. The reason I don't event with her is ... well, I just don't like eventing. Never enjoyed XC. Something about those rock solid XC jumps ...

Yeah sitting on your couch with that one

Lol I know!! Just the thought of, 'that might bust my head open' is a bit of a turnoff xD