I totally agree that rebuy satelites are very dangerous, because you could overcome the buy-in of the main event, in a very short time. Better play satelites without rebuy, addon, etc. These are achiveable to win tickets, and than - it depends on many factors.
For instance, last week I invested my last cents (had 0,14 - paid 0,11) to enter The Double Deuce Satelite with rebuy/ add-on on FTP. It was obvious, I can not make a rebuy (the main reason to enter it). And the miracle happened, I was among the top 3 to get tickets!
The fairytell for me, continued last Sunday after first half an hour playing the double deuce (20+2 USD buy-in). I fell very confident, regardless of 4300+ entries, had some difficult moments, but the most of the time I was among the top 100 in the MTT. Played strong hands, with enough aggression when the cards were on my side
, and very easy I entered ITM. Could be better for me personally either, but I finished 84th and cashed out 102,10 USD - a great ROI against 0.11 USD satelite entering...