I know just what you mean, I can't go without one either.
I picked up a pretty good value one (sorry I can't remember the price exactly) from a brand called Bulldog. It's a security remote starter with an integrated bypass module, so I had basically everything I needed right out the box. Plus, I came across some special offers on AutoZone orders (an auto parts store), so I saved some money there too. If you're comfortable doing it yourself, have a look:
https://www.couponbox.com/coupons/autozone