As I'm sure you know, in every area of commerce there is a curve of return on investment, and a certain point past which increases in expenditure no longer have a commensurate increase in function. To put it in terms of a field I'm familiar with, a $200 rifle will (generally speaking) give roughly %75 of the performance of a $400 rifle, although it'll be worse in just about every quantifiable way. A $400 rifle, however, can easily give %90 or more of the function of an $800 model, and the differences are frequently more aesthetic than functional. Furthermore, the actual performance differences are often such that the level of skill needed before they become noticeable is fairly high. In other words, a graph expressing unit of functionality per dollar spent would not be linear, and the point of inflection would be earlier and more abrupt the lower the skillset of the user. All that to ask, where is that point in the used amp market? Will a $200 head and $100 cab do %90 of the job a $400 head and $200 cab would? What is the point past which I stop paying primarily for sound quality, and start paying for extraneous concerns like weight, appearance, convenience, and brand name? And would a newb even be able to tell the difference? I've given up on the idea of just rushing out to buy a cheap tiny amp to learn on, and I want to save up for a decent but not too fancy rig. But before I can start budgeting for that, I need an idea of how much I need to spend. Wow, that sounded a lot less complicated in my head. Hope it made sense.