As your dragon is a year old now, you don't really need to feed too many insects anyway, a daily salad with a few superworms sprinkled on top (or for variety, butterworms, silkworms, hornworms, roaches) is perfectly fine, especially for a male.
Superworms are easy to keep and not expense...$20 will easily get you 500 of them and as long as you provide the superworms a dry environment around 75F or a bit warmer (they don't like cold so definitely want to keep them at least normal room temperature) and provide them with some fresh greens, you can easily keep them for months.
I keep mine in a critter keeper with oatmeal or bran/wheat or a mix, and toss in a couple collard green leaves every day or so...to keep them hydrated without making the container humid.
As you wouldn't need to feed more than 2-6 a day...500 lasts a long time. Every couple weeks, move them into a new container to keep them from smelling.
Far cry from crickets which have a live span of about 6 weeks...or less, superworms are far better...IT may become more costly if you had multiple dragons, but with one, they go a long way.
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PHLdyPayne