Do I really need Desoldering for replacing resistors/caps?


To replace such as resistors or caps.  Do I really need to get desoldering gun?   I was thinking to replace some of resistors and caps on ARC LS7.  The cheapest I seen was Hakko desoldering FR300-05 for $265, not sure if it worth it to buy it and will only use it once for this LS7.
Thank you,
eddy1
You could get manual desoldering pump for $4.50 or solder wick 
http://www.parts-express.com/Search.aspx?keyword=solder%20wick&sitesearch=true
Kester #66/285 is a proper solder - eutectic Sn63/Pb37 is the best for small electronic parts while 285 flux is mild and can be left on the board.
Agree with kijanki.  Unless you were going to do a massive amount of desoldering, a pump and desolder braid, work just as well and costs much less.