Seriously. I had the same thought. The annoying part is that for weird reasons I actually have two GI-275s in the plane already, both AHRS-versions, but one is serving as the engine monitor! The purchase of a non-AHRS GI-275 would indeed let me get rid of that vacuum system and I discussed that option with the shop, but they wouldn't be able to get that done until sometime in late June, meaning another two months of a grounded aircraft. Then my brain says "hey, if you're dropping coin on another GI-275, why not think about just putting a G3X in there and quite screwing around with small instruments? I think everyone here is familiar with that gold-paved rabbit-hole.