For me, the Stages were -
1. I NEED A SAW. I moved to a new rental house with a lot of trees on the property, so I bought a new green Poulan 33 cc saw. It's cute and even cut down the occasional tree. Stage 1 lasted for 5 years.
2. I NEED A BIGGER SAW. Dad gave me the used Poulan P295 saw that I used to buck a lot of big oak trees that fell in the yard after Katrina. This Poulan is yellow and black; still cute, but able to do some real damage to the local tree population. Stage 2 lasted 6 years.
3. I NEED TO IMPROVE THE BIGGER SAW THAT I HAVE. I pulled out the P295 to cut a stump that was giving the 33 cc saw fits. However, the P295 is leaking oil and needs a new fuel line. So I completely disassembled it, of course. And ordered all new parts. The cost of the parts was more than it would cost for a new saw. And I'm ok with that. Stage 3 lasted 1 week.
4. I NEED A BETTER BIGGER SAW. I realized the Poulans I have are really not high quality durable saws. I decided that I needed at least one high-quality durable saw to replace the P295. So I bought a Stihl 038 Magnum off eBay. Stage 4 lasted 24 hours.
5. I NEED MORE BETTER BIGGER SAWS! I found Arboristsite. And realized that if I didn't want my man card revoked, that I needed to rapidly grow my saw collection.
5a. I NEED MORE BETTER BIGGER SAWS JUST IN CASE OF AN UNFORESEEN SAW EMERGENCY OR ZOMBIE APOCALYPSE. Although the largest tree on my property is less than 2" in diameter, I decided that I needed a smaller saw for utility work, limbing, etc. So I bought a 028 Super AV from an Arboristsite member. And, since a 72 cc Magnum isn't the top dog in the saw world, I started looking for something larger. Stage 5a lasted 6 hours.
5b. I NEED MORE BETTER BIGGER OLDER SAWS! I realized that there are vintage, quality built, loud, environmentally unfriendly, unsafe, and somewhat expensive "muscle saws" that can be bought, tweaked, fondled, and perhaps pressed into service to cut wood one day. As someone addicted to musclecars, I can appreciate this. So I bought a Stihl 070, two Contra's, two 075's, an 07 S to feed my addiction. Stage 5b lasted 72 hours.
5c. I NEED TO MAKE SURE THE REAL WORLD DOES NOT INTERFERE WITH MY SEARCH FOR MORE BIGGER BETTER OLDER SAWS. My lovely wife, upon seeing a box arrive from the U.S. with a chainsaw in it, asked the most ridiculous question possible, "Another chainsaw? Don't you have two already? Why do you need another one?" I didn't want her to worry about me, so I didn't mention the other 7 saws that were en route to the house. And then I asked my neighbor to do his best to divert any further deliveries to his garage so I could sneak them into my garage when the wife wasn't looking. Stage 5c lasted 96 hours.
5d. I REALIZE THAT STIHL IS NOT THE ONLY MANUFACTURER OF BIGGER BETTER OLDER SAWS?!?!?! I realize that there are other manufacturers of quality chainsaws besides Stihl....I check my bank account balance and see that I have some funds available... Stage 5d could take a while...