I saw that Rhody LJ, and I really wanted it but the price put me off too. Last Year, they did a beauty called "Wims Red" can't remember if it was a rhody or a hydrangea anyway it was extravagantly expensive. I went on ebay and bought a baby one there but it still cost me a tenner. fast forward to summer and I'd planted around it with other "Stuff" for company and it did grow in height but didn't flower although the leaves looked ok. its now looks like 2 dead twigs but I'm hanging on to see if its going to grow, maybe its just resting!.
Two and two make four...........but now and then they add up to three and occasionally, just occasionally its five !