Isn't that contradictory ?? more support / cheaper prices ?
I would go more support - same(or higher) price .. but thats up to you.

How about phone support, faq, some tutorials ?
Btw, protect your service-business ! Invest in system security hardening even more, and again.. and again..
Everyday backup, off&onsite
I guess you should try to differentiate from others, so maybe hire a designer .. I like your site but ...

my $0,02