Onkyo TX-SR 705 Questions

I want the 705 over the 605 for the following reasons:

• 100 vs. 90 watt per channel
• THX Select2 certification
• DSD Processing
• 3 DSPs vs. unspecified number
• Phono input
• digital output
• 3 vs. 2 HDMI inputs
• 7.1 pre outs vs. subwoofer out only
• RS232
• IR Input
• 12v Trigger
• Learning Remote
• AudysseY MultEQ XT vs. Audyssey 2EQ

But I have some concerns/questions.


- Does the 705 have a lot of issues from owners like the 605 (buzzing noise, issues with some HDMI inputs not working properly, etc.)?


- I keep hearing how horrible Onkyo's support is. 1+ hour hold times, unfriendly tech representatives. Is this overexaggerated or true?


- I am worried about having an issue with the 705 and either not being able to return it to manufacturer, or being able to but having all sorts of shipping fees, etc.


- I would most likely buy off eBay since I can get a slightly cheaper price than any other place. Would you recommend saving the money versus buying it at a local store that you can easilly return it to if it has issues?


Thanks.