I'm with you on the stove price dhershberger. The Jetboils are a bit up there in price. MSR makes some awesome stoves. The MSR Pocket Rocket you have is a good stove and gets great reviews. At $40 the MSR Pocket Rocket is a good price. I've upgraded from two MSR Whisperlite stove versions in my time, and they still get Backpacker Editor choice awards in 2012. MSR has never failed me.
When I was up for a stove upgrade, the last one being 10 years ago, I looked at the fuel cost savings I'd have over time, stove weight and fuel weight savings. A 12 pack of 100 g fuel is hitting $54 of the isobutane propane blend now out my way. These gas prices both for my vehicle and now for stoves seem to be going through the roof. I typically hold on to a stove for 10 years on average so I'll probably save some money in gas over that time was my thought or perhaps was it just the added incentive to entice me to hit the buy button. I do also get some fuel weight savings on my trips into the backcountry burning more efficient now on the Jetboil though.
Over the years I've upgraded a few stoves that I still have going back to the 70's and 80's when I had white gas stoves. I had propane in the 90's to 2000's to the isobutane propane blend of the Jetboil today. If I look at all the stoves I have upgraded over the years, I'm surely not saving a lot of money buying new stoves every ten years. Each time I've upgraded, either for ease of use or for weight for me it has been worth the money though.
If I can get another 10 years out of my Jetboil, I'll be on target for the next upgrade which seems to be my going trend in stove upgrades. Who knows, in 10 years some brilliant inventor will invent some kind of lightweight solar stove that's lighter than what I have today. It will have $0 in fuel cost, zero fuel weight and boil water faster than my Jetboil. If and when that day comes they will probably entice me to upgrade again. What can I say. I'm also a sucker for the technology innovation rages.
