LEGO is one of the most enthusiastically endorsed BIFL brands in the r/BuyItForLife community, with the core brick system and DUPLO lines earning near-universal praise for extraordinary longevity, cross-generational compatibility, and manufacturing precision. DUPLO specifically is celebrated as an essentially indestructible toddler toy that has survived 30-40 years intact. The one meaningful divide is with LEGO Technic, where a smaller but pointed set of voices raises concerns about rising prices, quality regressions, and a creative shift toward app-controlled systems — concerns that echo, more softly, in brand-generic comments about recent injection molding and color consistency issues across all LEGO lines.
The core LEGO brick system and DUPLO lines — which together account for the vast majority of mentions (159 + 715 + 10) — earn a strong recommend on durability, compatibility, and generational longevity. The verdict is pulled just short of 'Strong recommend' by the consistent thread of recent quality and pricing concerns across brand-generic comments, and by the explicitly mixed verdict on Technic, which signals a real and named divide for that subset of buyers.
LEGO's defining strengths are its extraordinary durability and universal compatibility — bricks from the 1970s still click seamlessly with bricks made today, making it one of the rare products that genuinely earns the 'buy it for life' label.
A vocal minority flags quality regressions in recent years, with concerns concentrated in Technic but echoed more broadly — particularly around rising prices, color inconsistency, and a shift away from open-ended building toward kit-focused and app-controlled designs.
Multiple users describe pulling out childhood sets from the 1970s and 80s and handing them directly to their own kids — bricks still snapping together perfectly with brand-new pieces.
DUPLO is repeatedly called 'essentially indestructible' — one of the few plastic toys the community considers genuinely worth full price, or even premium secondhand pricing.
Technic stands apart: several commenters mourn the shift away from reusable, versatile parts toward app-controlled systems and wildly colored internal pieces that kill creative reuse.
The brand-generic consensus treats LEGO's ~20-micron manufacturing tolerance as the gold standard — the reason knockoff bricks feel noticeably inferior and why 50-year-old pieces still work.