I'd agree with Neil and Jo - also, a new wooden recorder has to be played in very carefully to avoid cracking the instrument, and many will also need oiling from time to time - so maintenance comes in here too. The issue of solo or ensemble is slightly complicated - a solo instrument will have a sound which demands to be listened to, an ensemble one may be softer in sound but also not be able to hold its own against other instruments. I play mainly solo or duets, so have suitably attention-seeking whistles, but when playing second recorder in a small baroque orchestra over the summer, found my recorder was drowning that of the first recorder player...

In the end though, the choice comes down to how the sound issuing from the instrument appeals to you, providing the budget will stretch. £100 is not going to do it, for a good wooden treble. Have a look at
this page for an idea of likely prices. I have a maple instrument which has served me well over the years, but I know that Jo.clarinet has more experience of them and has advised against these; my pearwood ones sound soft and mellow, the boxwood ones bright and warm.