My past was similar, always a rack, various Rolands, Kurz PC2R, Trinity rack, a little Akai half rack piano unit at one time, EMU P2K. Then, for a while, I went to 2 keyboards and dropped the rack. But now I have to take a rack with my Radial KL-8 for my IEMs, so why not add some modules, lol. Currently a Dexibell SX7 and a GSI Gemini. Broadens the sound palette nicely, though if I was looking to buy a rack module again I think I'd just go with an iPad.