Take the plunge if you can do so without depriving your family or creating discord, or getting into debt. These qualifications are easy to express, harder to judge.

For one thing, the Pass Lab amps are the only ones I would trust to deliver the best, least compromised sound regardless of cost -- not that they're cheap. For another, the Magneplanar MG 1.6QR's have proven to me that they can exploit the best electronics you can attach to them.

Right now I'm looking at low cost, (new or used), amplifiers and trying to get a feel for which will deliver for me the most agreeable set of compromises. This is a weary task since anything I can afford has this, that, or multiple compromises.

But beware that there is not "end of the trail" in audio. If you find an amp that will satisfy you for a few years, then you will feel the urge to find the idea speaker or whatever else in the reproduction chain.