Just took advantage of the 15" trimmer kit with 2.5AH battery with free 2.0Ah bat. LOVE IT!! I'm now waiting for a good deal on the 530 blower. Is there any reason to have FOUR batteries? (I also have the 4.0Ah battery that came with the (original) 20" mower. I'll be the only one using the tools in my yard. Should I get the blower kit or just the bare blower? Any chance the bare blower 530 will see $99 early this season (at home depot US)?