LEGO 1974-4 Star Quest, 2847 Flyer, 6831 Space Police Message Decoder & 6829 UFO Radon Rover 1974 Star Quest $32 LEGO 1974-4 Star Quest was a 36 piece Space set with 1 minifig released in 1989. It includes a one-man spacecraft and a Futuron astronaut minifigure. The current value for a new and sealed Star Quest is estimated to be around C$40 today, with an average annual growth of about 15.5%. However, it is expected to level off to around 11.6% annual growth next year, making it a solid investment. On the open market, a used set will sell in the range of C$29 and C$36, depending on its condition. Star Quest (set 1974-4) is an extremely old and rare LEGO set. It has not been seen for sale online or in retail stores in good/new condition in over 2 years. Due to its rarity, the current estimated value of C$39.96 may be much lower than its true value, assuming it can be found for sale. As this set was released in 1989, finding it sealed and in good condition is particularly challenging, likely driving its true value even higher. #2847 UFO Flyer $ 12 LEGO 2847 Flyer was a 15 piece Space set with 1 minifig released in 1997. It contains a Chamon minifigure. The current value for a new and sealed Flyer is estimated at C$35, with an average annual growth of approximately 6%. On the open market, a used set will sell in the range of C$5 and C$9, depending on its condition. LEGO 6831 Space Police Message #6831 Message Decoder $16 Brick Economy: "LEGO 6831 Message Decoder was a 34 piece Space set with 1 minifig released in 1989. It includes a small ground vehicle and a Space Police I Officer minifigure and is the smallest Space Police I set. The current value for a new and sealed Message Decoder is estimated at C$270, with an average annual growth of approximately 6%, which is lower than other Space Police sets. On the open market, a used set will sell in the range of C$11 and C$17, depending on its condition." Free online instructions: https://lego.brickinstructions.com/lego_instructions/set/6831/Message_Decoder LEGO 6829 Radon Rover $20 Brickeconomy: "LEGO 6829 Radon Rover was a 53 piece Space set with 1 minifig released in 1997. It includes a wheeled UFO land vehicle driven by a Techdroid I minifigure. It was also called "Xdiscoverer". Today's value for a new, sealed Radon Rover is estimated around C$104, with an average yearly gain of 9.5%, expected to level off to around 6.2% in the coming year. On secondary markets, the typical price range for the set MISB/NISB is between C$99 and C$169. Current used prices for Radon Rover range from C$18 to C$24, depending on the set's condition, with an average price of C$20 for those in good overall condition." Free online instructions: https://lego.brickinstructions.com/lego_instructions/set/6829/Radon_Rover Buy all 4 for $75 Check my sellers list for more Lego sets. Buy multiple sets & get a better deal. I will also trade for Lego Star Wars, Lord of the Rings & The Hobbit sets. Thank You. š·