IMO and its just that, the majority of the nappies that are on ebay are a bit of rubbish - you dont realise this until you have paid for the more expensive ones and go - ahhhh these are soooo much better.

KAte the ones that you listed i bout when i was pg... I call them the cr@ppy nappies.... not cos they are good at poo, but because they are pretty useless...
After one wee they are wet, if left on for more than an hour or 2 they can get literally soaking and the only reason that i dont have leaks is cos i have good wraps.
These tend to be the nappies that i use prior to bed after a bath as i know that she will only be in it for 2 hours tops and generally only does one wee and sometimes no wee at all... (we sit on the potty, but thats another thread)

Also i dont really like the BBH Magicalls as they too dont last that long and are the only nappies that i have got leakage from.

when it comes to MCN, i have found that you really do get what you pay for.
I would slowly build up a stash if money is an issue and buy good quality ones as you will end up regretting the cheaper purchases later on

HTH