If i get 5m i go invest am for bitcoin because stress no dey am, just buy and hold it in your wallet for that 10 to 20 years you go see your gain. Land na valuable asset but before you go acquire the necessary documents to take secure that land e go take pass that 5m because you go need documents like Certificate of occupancy (C of O), deed of conveyance and other land documents to take protect your land and sometimes if na land wey dey for better location (hot cake) e go require you to fence am, so all these things requires money.