No offence to alpha user, I think tht most ppl start with alpha is cos it's more value for money. In other words, spend less to start off with, and do as good as other brand.
So ask yourself, if you were given the choice of system, with same amount of money to spend at the begining, which one will you go for? If alpha still your choise, than stay.
Else, if you can get a good deal and with little lost, go ahead. Although it's just a tool, but it's more enjoyable if you like it more, right?