Hi Milpai,
Like you I put off power conditioning as well. My original unit was a Sound Application XE 12S. A great unit that served me well but it was getting up there in age. Got a chance to grab a Synergistic Research Power Cell 12 UEF and I feel like an idiot for not doing it sooner. It was without a doubt, one of the most significant upgrades I made for my system. A good conditioner will improve every aspect of your system.