Does that make sense?
Let's say you're considering to play in the $11 Sunday Storm.(Starting chip 10000)
You saw a satellite that costs $1.10, with 10 seats Guaranteed, average playing field of 300. Now you're like should I play the satellite or should I buy-in directly?
So here's the maths behind it.
Assuming you're a good player with a 10% ROI (in tournaments, which is high to be honest, but okay for $1.10 stakes), 300 players translates to $300 in prize pool, or 27 Seats and chump change. If you're a 10% ROI player, and the payouts are 9%, then it's an easy break-even game for you.
But lets assume you don't have a 10% ROI and want to know whether I should play it or not, as you can see above it pays 9% of the player pool. And with the Buy-in for the satellite, you have 10 buy-in to level with the actual tournament, i.e. you can play 10 times to get into the tournament with the same amount of money to directly buy-in the tournament. So in theory, you just have to win 1 out of every 10 games you play (10:1), in a game that offers 11:1, to get to the requisite tournament.
If you do it in less than 10 games, lets say you played 5 games to get a ticket. So 5 games = $5.50 investment, for the exact chip count as everyone else. That means, when most people's chip would value $0.0011/chip, your chip would value $0.00055/chip. As you can see, before even the game began, you were a winner. And had a huge advantage over the level playing field.
Now, your decision should come down to: If you're a winning player at the stakes the satellites are being offered, then you should play the satellites. If you're not, then direct buy-in (But just for fun).
That said, more number of games you play, the more time you've to invest playing, i.e. more time commitment required.
Hope it makes sense.