Is there a reason to own 2 different Studio platforms?

[Neal Campbell K3NC]

Sorry if this hits the list as a duplicate.

I bought Studio to program on the Mac, with some intent to be able to  
have easy porting to Linux and Windows. The marketing spin on the  
website implies you really need to own only 1 platform of Studio as  
you can develop once and deploy many.

Is this the opinion of the people on the list? Is there a compelling  
reason to own Studio on multiple platforms?

Neal Campbell
nealk3nc at gmail.com

"Devoted to Dogs: How to be your dog's best owner"
Great Dog Book  at www.abrohamneal.com