purchasing getting closer

Purchasing time frame and retiring much closer. Have looked at all recommended models. Previous Allegro gas owner 10 yrs. Question on a unit, 2002 Monaco Windsor 40pbt, 3 slides, usual equipment plus more, 73000 miles,looks great but can be from hd photos. Floor plan extremely acceptable. unit priced at $57,900, in the middle of nada value. Can the extremely knowledgable readers on this site help me in entertaining this could be a good unit to purchase with proper inspections. I am looking for knowledge and any experience on this type ov rv. Thanks in advance for your help. ChefAlan looking to go.