Excellent point, ATJr. Many times, we all get carried away with explorations onto the next level improvement not realizing that those incremental stairsteps add up to something not feasible anymore.
I may, for example, find out at some point, while tinkering with the AV200T, that the sum of expenses could have afforded me a fully built and much better amp, at much less trouble.
That's one of the reasons why I will try to enjoy it "stock" first. When I do decide on the mod, it will be for the fun of the mod itself, secondary is the SQ.
In my hobbies, I seldom look at ROI when I buy new stuff and sell my old. I guess I have long ago considered my hobbies as cost centers of joy. I could never cost justify, for example, constructing a Home Theater if I can watch movies in a cinema. Yet I have built (and now rebuilding) one.
But I do see your point. It's always good discipline to keep economics at the back of one's mind everytime one gets the urge on a project.