I posted part of this in another thread here, but its perhaps useful to plonk here as well - as I'm an IBurst user, and I've applied for adsl and the clock is ticking down to installation date.
So why adsl?
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biggest sell for me with adsl is the ability to buy (at a relatively 'reasonable' price) a 30 gig monthly package - (which at current IBurst rates, on a 3 gig package @R399 per extra 3 gigs - would cost R4000 a month)
I like the idea of having a 30 gig pool of data to use, and for another 600 or so, if I want, it turns into 60 gigs to play with every month. No extra fiddling, no workarounds, no proxies, just a big chunk of available data download that I can rely on.
For me, the amount of time and energy and money taken in trying to get IBurst to be consistent and reliable and deliver what I want, I'd rather pay someone else and get a guaranteed quantity of monthly data..
It depends on you, your financial situation, and your online habits. I want a lot of available data available to me so I can download the things I'm into, without stress - and without having to run back and forth to Iburst, for instance, to pay for more of their overpriced 'extra gigs'.
You need to weigh up how you use your internet connection, and also how you value your time and energy - for me, I'd rather be paying R1200 a month and not have to think at all about 'whether or not I should download X' - or stare at my throttled modem speed and know its going to take me days to download something at a miserable speed.
I dont really care about local being capped or not, as there is absolutely nothing on local internet that I want. It might be nice to continue to be able to offer/share stuff to others locally - but from a selfish perspective - I dont really need local uncapped. I just need that 30 gigs (at least) to rely on, for downloading what I like, without any stress, endless bitching on forum, sitting on hold at IBurst helpdesk etc etc
But each persons requirements and approaches to the Internet are different. There's no one good reason why ADSL rather than IBurst. My motivation is the available and speedy chunk of monthly data, my growing irritation at Iburst service/management, and my willingness and ability to pay for a stress-free internet experience.