Are older Gunpla kits worth buying, or should I stick to recent releases?

Specialist communities consistently flag that engineering has improved dramatically. Modern HGs from the Witch from Mercury and Iron-Blooded Orphans lines have better articulation and color separation than many older MGs. That said, certain classic kits like the MG Wing Zero EW Ver.Ka and PG Unleashed RX-78-2 remain top-tier because they were designed with modern techniques. Pre-2010 kits without a 'Revive' or 'Ver.Ka' tag generally show their age.