It all boils down to a mixture of personal economy and priority.
The cool thing is that I've had the opportunity to work alongside a wide group of people. Thus, I've been able to observe what real-world folks consider affordable - at least when it comes to Hi-Fi stuffs.
To begin, I'd like to focus on a group of people that I like to call real-world shoppers. These people usually work middle-income jobs, and while they have enough money to enjoy some of the finer things in life, a good bulk of their cash goes towards things like bills, college funds, retirement plans, and all of that other boring yet necessary stuff. While many of these people would love nothing more than to bring home a cost-no-object system, their lifestyle prevents them from taking those kinda thoughts too seriously. When the real-world shopper decides to buy a stereo rig, usually they are looking to spend around $500 for the whole sha-bang. That figure can easily double to the $1000 marker *if* they are given a jaw-dropping demo, but $1000 is usually as far as it goes.
Next we have a group of real-world shoppers who occupy the next income tier. By and large, these people are less burdened by day-to-day life expenses and have a little more cash to spend on cool toys. From what I've seen, this crowd is where the average audiophile resides. Most of the people at this level are willing to spend $1500 to $5000 on a good stereo system. For these people, the definition of thrifty is simply resisting the urge to accrue debt by bringing home the kinda drool-worthy toys that occupy the next price bracket.
This brings me to the last tier, one that I will lovingly refer to as the Audio Shark playground. The folks that swim in these waters tend to be financially well off - to the point to where $5,000 may not even be enough to cover the costs of just ONE of the exotic power cords found throughout their sports-car priced stereo system. Being thrifty? What's that? Is that when people buy Polk Audio?
Seriously though, at the end of the day, it's all relative. To me, it all boils down to this simple question: "Could a high-school kid afford to buy this system?". If I had to put a monetary value on what 'thrifty' means to me, I'd say the rig should cost around $400 and absolutely no more than $500. That's my take on the subject.
