Hi Steve
You have not mentioned that you can buy telescope kits for under $300. Our society orders 5" club scope kits for members that they can then make themselves. Under $200 dollars for members will get you started.
Regardless of your experience - you need to state the facts that you can hire equipment from societies - there is no pressure to buy.
The AAVSO lists the basic equipment for Variable Star Work
http://www.aavso.org/publications/manual/chapter1.shtml
"Binoculars — For beginning and experienced observers alike, binoculars are an excellent variable star observing tool. They are portable, easy to use, and provide a relatively large field of view, making it easier to locate the variable star field. Much can be done with a pair of good quality binoculars. Handheld 7x50's or 10x50's are the most generally useful for variable star observing. Higher magnification binoculars also work fine, but will usually require a mount."
you can buy a pair of 7x50's for under $300. Note: your own site states the following:
"The cheap essentials
A pair of 7x50mm binoculars are considered standard for hand-held binocular astronomy. A very acceptable pair can be purchased for under $100 from an astronomy supplier – which ensures they are designed with astronomy in mind."
Start eating!
Cheers Petra d.