I really don't care for the "convince me to buy this" thread. (sorry, JMO).

I'm NOT a salesman and I never will be because I will not try to convince anyone they really need something. If you ask my opinion on which item to buy, I have definite answers for you. I would certainly recommend X1 over other DAWs because that's what I think is best for the money. Or I might recommend this soundcard/interface over that one because of problems I know that exist with integration, drivers, etc.

But it all boils down to what is best for ME is not necessarily best for YOU and therefore the "convince me" thing will never be something I am comfortable with.

having said that, I LOVE X1. I have had my share of problems with it and it still causes problems from time to time. probably more so than any previous version. but I still love it and think it's the best value of any DAW on the market currently.

I also agree with the above that if you've invested in Sonar then continuing to support the company and keep yourself in line with the current product for future functionality is always a key ingredient to better usage for your needs.

so, having said all that - if I were you, I'd buy the upgrade! But I'm not you, so you decide!