What fun:
1. How many razors total have you owned? 11. Gave away two, swapped one, one is wrecked. Currently have 7.
2. How many razors have you ruined/cracked/scratched/dinged/etc. during shaving? How were they ruined? See above (1) but I didn't wreck it, my brother did (cracked blade with too much buffing)
3. Do you still have your first straight razor? Yep, my lovely Burrell Top Flight. I was very lucky that as my first razor it was truly shave ready (off the 'net). I'd never sell it, it has a special place.
4. How long have you owned the straight razor that you owned longest? Please provide it's size, grind, and blade material. Two years. Full hollow, 5/8(see above)
5. How many inches would you expect me to remove from a razor if I used it daily during my lifetime? A whole 8th of an inch? A 16th of an inch? Pardon? Inches? Um, none. It's negligible.
If you're wondering if you need more than one razor, the answer is no and yes. NEED = no, Is beneficial = yes.
Unless you really really can't afford more than one razor, get another. It's arguable that years ago people only had one, possibly for their entire life or a good deal of it. Now, with the use of tape and very nice man-made hones, it's probably more possibly to have just one razor than 'in the olden days' when hone wear may have been more of an issue. Really, though, a once every six months hone on a high grit hone should cause minimal wear and metal loss.