Wireless Access Points

We have 11 Symbol AP-4131 access points on our wireless network and need 
to install another AP. One use of the wireless network is for scanning 
parts and product with LXE computer/scanners.  It's been suggested that we 
install a CISCO access point because all the new LXE computer/scanners now 
have CISCO radio cards.  (The LXE's used to have Symbol cards but Symbol 
no longer sell them to LXE).

Will a CISCO access point play well with the other 11 Symbol access 
points?

Why do CISCO and SYMBOL access points cost about $500 when a Linksys AP 
seems to do the same thing for less than $100.  What do we get for the 
extra $400.

Thanks in advance for any replies. 

Bryan Burns
ECHO, Incorporated