The Rainforest Gym by Fisher Price is always popular, and right now you can order one from Amazon for £48.97 from Amazon. Granted, it's still pricier than the average budget baby gym, but judging by how popular these tend to be, it seems that parents feel it's decent value for money.
The reviews are brilliant. Listen to this:
"I bought this after seeing good reviews and my son absolutely loves it. I bought it when he was only a few weeks old and even then he found it engaging. As time goes on, he finds more and more to be interested in moving on from looking at the various features to batting them to then actually playing with them and improving his dexterity. Now, he looks longingly at it as he's carried around the room and friends who have tried it with their babies decided they would also buy it."
This isn't the cheapest the Rainforest Gym has even been and the price seems to fluctuate wildly online, but it's not a bad deal compared to the normal price of £59.99.
It's suitable from birth and has two different play modes - one for 'bat-at play' which presumably means when your child is lying on their back, reaching for the toys hanging overhead, and one for tummy-time which is good for encouraging your baby to strengthen all those core muscles that are so important for crawling and walking.
There are also lights, nature sounds, music options and lots of fun activity and textures to keep your baby occupied.
Delivery will be free as you're spending more than £10.