Various Reds: Drink Now? Later?

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I've been trying to get a sense of when certain reds should be consumed for maximum enjoyment, and one source I looked at says that pretty much all wine under $25 is ready to drink and won't improve much with ageing. Is this true?

Here is a sampling of what I have on my wine rack; all but one are reds. Are any worth holding onto for a while? Any comments about them that may help guide me? Thank you so much!

1. Marqués de Murrieta 1995 Rioja (Ygay-Pratum Lagareta)

2. Torres Gran Coronas Cabernet Sauvignon Reserva 1996

3. Marqués de Cáceres Vendimia Seleccionada 1998 Rioja

4. E. Guigal Côtes du Rhône 2000

5. Ch. La Rose Metairie Haut Médoc 2000 Bordeaux

6. La Carraia Sangiovese 2000

7. Viña Alarba Red Wine 2001

8. Di Majo Norante 2001 Sangiovese

9. Domaine de Montpezat 2001 Merlot

10. Rockbare 2001 Shiraz

11. Francis Blanchet Vieilles Vignes 2001 Pouilly Fumé

I really do appreciate your guidance!

John