True but Mael, a 5yr old bike is still VERY usable especially if its a medium to high end bike, on the other hand a 5yr old PC or cellular phone is rendered USELESS today. Cost analysis shows that digital products decay in cost and efficiency at an alarming rate. Analog products stay stable. For example i have a 1996 Yamaha high end amplifier coupled to a pair of BW kevlar loudspeakers. Age? 7yrs. Value? The same, usability? The same. On the other hand 1999 PC, Pentium III 550mhz , GF2 GTS, 256ram, 10gb HD price 2000$ (1999) . Price today 500$ MAX , usability 20%.