I saw no reason to, and I'm pretty sure my computer can't even benefit from all the stuff Lion offers. Since I was planning on getting a new MBP soon, I figured I would move to Lion/Mountain Lion then.
I'm still on Leopard and am quite happy, thank you.
Still trying to determine what I'm going to replace Quicken with. Yes, I know they have a new version now that will run under Lion, but after the way Intuit has treated Mac users for the last decade, there's no way they're getting any more of my money.