Well, that cleared things up for you I'm sure.
As Wookie says, you pay for more toys. Which in your case, you say you don't need. So go with Artist. Except that you want "real" sounding drums. And unless you have another preference, you get AD (drums) w/ Platinum, which would save you money in the short run. Buying a comparable drum soft synth would be more (or about the same) as buying Platinum. And you would have more toys - some of them very good (Overlouds' stuff, etc.). But it costs more to keep current w/ Platinum - about $150 a year. Of course, you don't have to upgrade, so you save money.
I didn't really help you either, but now you have some more info before making your executive decision. Have fun.
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